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　　If you open the column,

　　According to the survey, 42% of the poor households who set up their cards were poor due to illness. The "Thirteenth Five-Year Plan" period is a period of getting rid of poverty and attacking hard bones, attacking cities and pulling out villages. How can we get rid of the hard bones caused by illness?

　　This edition launched a series of reports on "Stopping Poverty Caused by Illness" today, introducing the exploration and experience of various places. The first part introduces the solution path of Daning County, Shanxi Province: helping and strengthening county-level hospitals, improving the ability of diagnosis and treatment at the grassroots level, and reducing the burden of medical treatment for ordinary people; At the same time, establish front-end control, carry out health science popularization and high-risk population screening, actively treat the disease before it happens, and reduce the chance of people getting sick.

　　"County hospitals account for 70% of internal medicine patients, and 80% of them are patients with cardiovascular and cerebrovascular diseases." Daning, Shanxi Province was originally a poor county, with no resources on the ground and no mineral deposits underground. Unexpectedly, it suffered from this kind of "rich disease" that occurred frequently in economically developed areas.

　　Getting rid of poverty in an all-round way, getting poor due to illness and returning to poverty due to illness are unavoidable "hard bones". According to the survey, 42% of the poverty-stricken households who set up the card are poor due to illness. What should a small mountain county with "rich disease" do? Where is the difficulty? The reporter conducted an interview.

　　Eating less meat, vegetables and salt will bring cardiovascular and cerebrovascular diseases.

　　Daning’s turnaround in stopping poverty caused by illness began in 2015. In this year, the Provincial Health Planning Commission organized experts from the First Hospital of Shanxi Medical University, the Provincial Children’s Hospital and the Linfen People’s Hospital to form the Daning County Health and Family Planning Poverty Alleviation Task Force, and sank to the county hospital. Counterpart assistance.

　　Li Yang is the deputy chief physician of the Department of Neurology, the First Hospital of Shanxi Medical University. After arriving in Daning, he was appointed as the vice president in charge of medical treatment. He found that "70% of the internal medicine patients in county hospitals, 80% of whom are patients with cardiovascular and cerebrovascular diseases."

　　According to Li Yang’s analysis, the reason for the frequent occurrence of this disease lies in diet. "If the diet is heavy in oil and salt, it is easy to suffer from hypertension and hyperlipidemia, and hypertension is the primary risk factor for cardiovascular and cerebrovascular diseases. Generally speaking, eating meat and vegetables is less, and salt is heavy before eating. The lack of health concept leads to low awareness rate, low control rate and high prevalence rate of hypertension in the local area. "

　　Sure enough, many patients in the inpatient department are like this. 82-year-old Li Xiue came to the hospital after feeling dizzy and uncomfortable, and found that her blood pressure reached 140— 150。

　　Li Yang asked her, "How often do you eat meat? Do you eat much food? " Li Xiue said, "Meat can’t be eaten once a month, vegetables are rarely eaten, and salt is heavy." Hearing this, Cao Huiting, a 58-year-old son, was embarrassed. "Last year, more than 10 mu of land was confiscated, and seed fertilizers were lost. This time, I also borrowed money to be hospitalized."

　　45-year-old Wang Aimei and Li Xiue live next to each other. Her family has inherited hypertension, her mother died of cerebrovascular disease, and her father also suffered from cerebrovascular disease. She takes medicine every day, but she still likes to eat salt every meal.

　　The combination of poverty and illness makes it easy to return to poverty due to illness. According to statistics, Daning County has a total population of 69,000, including 36,000 poor people, and nearly 10,000 people are poor due to illness or disability, accounting for 28% of the total poor people.

　　Looking at the whole country, Daning may not be an isolated case. To get rid of poverty, health intervention should suit the remedy to the case, especially to prevent poor counties from getting "rich disease"

　　On April 5, following Daning, the Provincial Health Planning Commission sent medical poverty alleviation teams to Yonghe County, Wuzhai County and Xingxian County, which are located in the concentrated and contiguous areas of Luliang Mountain. It is reported that the implementation of medical poverty alleviation in Shanxi and the prevention of returning to poverty due to illness through health intervention have entered the normalization.

　　Helping county hospitals to alleviate the difficulty and expense of seeing a doctor

　　Poor county poor medical care, first arrived at the county hospital, Li Yang insomnia for half a month.

　　Why? There is no fixed doctor in the emergency department for many years, no pathological room for regular work, the supply room can not meet the needs of clinical departments, and the laboratory department has not carried out bacterial culture for many years, which can not provide biological support for hospital feeling and clinical antibiotic use; The inpatient department is an old building in the 1980 s, with no elevator and no bathroom; The operating room space is narrow, which leads to unreasonable layout and incomplete functional areas.

　　Now that half a year has passed, the county hospital has greatly improved its department settings, medical procedures and diagnosis and treatment norms. Lei Ruifang, the president of the county hospital, is happy. "Without help, I was promoted from a second-class hospital to a second-class hospital?" Don’t even think about it! "

　　According to reports, in view of the weak links in county hospitals, the task force has tackled key problems in multiple disciplines and established and improved intensive care units, emergency rooms, infectious diseases departments, neonatal wards and equipment departments; Standardize the layout and process of operating room, delivery room, disinfection supply room and abortion room, basically achieve reasonable partition of cleaning and pollution, and so on.

　　With the help of the task force, the clinical skills of internal medicine in county hospitals have been improved, standardized training has been given to the diagnosis and treatment of nervous system diseases, and a standardized process of thrombolysis for emergency stroke has been established, which initially meets the conditions of intravenous thrombolysis for patients with cerebral infarction time window and improves the treatment level of cerebrovascular disease in the acute stage.

　　At the same time, the hospital has also set up a patient service process with eye-catching signs, providing patients with convenience measures such as medical guidance, health education materials, drinking water, parking, wheelchairs and accompanying inspections.

　　Wang Yuhong, deputy director of the County Health Bureau, said, "Health assistance has really played a big role. People now go to the county hospital for medical treatment, all of which are diagnosed by experts in the province, and the proportion of reimbursement is also high. The medical level of county hospitals has improved. Patients choose to go to county hospitals for medical treatment and hospitalization, which not only facilitates medical treatment, but also saves transportation and accommodation expenses incurred by going to other places for medical treatment, alleviating the difficulty and expensive medical treatment for ordinary people. "

　　According to reports, only two diseases, cerebral infarction and caesarean section, are taken as examples: the cost of going out for medical treatment is 2,500 yuan and 1000&mdash higher than that of county hospitals; 1500 yuan, and the reimbursement rate is 10% lower. After the medical level of county hospitals improved, the number of outpatients increased from 29,001 in 2014 to 33,942 in 2015, an increase of 17%.

　　Make up lessons in health, and screen high-risk groups for treatment.

　　Prevention is the only way to get rid of the root cause. In 2015, Daning formulated the "Health Education Work Plan" and built a county (CDC) — Township (township hospitals) — A new model of integrated health education in villages (health huts).

　　From this, the first healthy hut in the county was built in Rugu Village, Taide Township. Villagers can measure their blood pressure, measure their height and weigh themselves in the hut, and they can also gain knowledge about healthy eating and prevention of chronic diseases.

　　Wang Yinke, director of the County Center for Disease Control and Prevention, said that with a healthy hut, disease control and prevention will have a "stagnation point". Disease control and prevention will join hands with township hospitals to carry out health science popularization, gradually cultivate rural public health personnel and ignite the flames of rural health communication.

　　At the same time, the county hospital introduced the stroke prevention project of the National Health and Family Planning Commission, actively established the database of high-risk groups of cardiovascular and cerebrovascular diseases among the elderly in the county, and implemented full coverage grid management, in order to improve the prevention and control of cerebrovascular diseases in the county and reduce the incidence and recurrence rate of cerebrovascular diseases. At present, the pilot project has been completed in Taide Township. A total of 1,296 people over 40 years old have been screened and 268 high-risk people have been found.

　　Li Yang said that according to the intervention and management network system linked at the county and village levels, Daning will conduct inspections every two months for the screened high-risk groups of cardiovascular and cerebrovascular diseases, understand the control of risk factors, improve electronic files and report them to the internal medicine department of the county hospital, and then the county hospital will provide technical guidance on the inspection results; The county hospital carries out blood sugar and blood lipid test and blood vessel examination once a year, and the First Hospital of Shanda University carries out intervention effect evaluation and treatment guidance.

　　In the next step, county hospitals will explore the implementation of the family doctor system for high-risk groups, and physicians will contract high-risk groups in various towns and villages in pieces to implement full coverage grid management, leaving no blank areas for prevention and control. In case of acute attack of cardiovascular and cerebrovascular diseases or poor control of risk factors, you can directly contact doctors in county hospitals for treatment, so as to move forward the prevention and control barrier, truly improve the level of prevention and treatment of cardiovascular and cerebrovascular diseases in the county and reduce the medical burden of the people.

　　(Reporter Zhou Yajun)

Original: PAData PANews

Editor | Zhou Wenyi Source | PANews

Data and Analysis Support | Chengdu Chain Security

PAData Insight：

This year, blockchain security incidents have occurred more than 10,000 times, and the cumulative global losses have exceeded 6 billion US dollars.

Among digital asset crimes, the United States accounts for 28%, which is the largest in the world, Europe accounts for 24% and China accounts for 18%.

This year, there have been more than 28 exchange security incidents, of which more than 7 have been stolen from exchange digital assets.

More than 100 smart contract vulnerabilities have accumulated losses of more than 10 million US dollars, of which EOS DApp attacks have exceeded 60 at most, accounting for 67%.

There were more than 7 wallet security incidents in the whole year, with losses exceeding 100 million RMB.

Digital currency, which has the largest traffic of bitcoin in the dark network this year, has a total transaction value of about $1.035 billion.

This year’s cyber blackmail attacks caused losses of up to $1.5 billion, up 20% year-on-year, and various fraud crimes are still rampant.

Security has always been a hot issue in the industry. According to Chengdu Chain Security Report, in 2019, blockchain security problems caused by blockchain digital assets showed an overall upward trend, and security incidents caused by various reasons also increased significantly. There were various crimes in digital currency, including money laundering, fraud, theft, drug trafficking and mining crimes. Due to the poor security of digital currency trading platform and the complex data structure and algorithm, the work efficiency is low, especially the irregular operation behavior, which hinders the development of digital currency.

In security incidents, the project party runs away and involves the most funds.

The United States became the hardest hit area for digital asset crimes in 2019.

According to Chengdu Lian ‘an statistics, in 2019, the United States accounted for 28% of digital asset crimes, with Europe accounting for 24%, followed by China accounting for 18%. According to statistics, from January 2019 to mid-December 2019, there were more than 10,000 hacking incidents of digital assets around the world, and there were as many as 2,000 criminal cases related to digital assets in China.

In 2019, criminal means emerged in an endless stream, ransomware and money-plate running patterns were newly turned over, criminal gangs came from a wide range, and the number of criminal cases and the total amount involved in criminal activities showed an increasing trend.

In 2019, the types of global digital asset crimes include hacking, money-raising, money laundering, and illegal transactions in secret networks, with a total loss of more than 6 billion US dollars. The amount involved in cyber crimes and secret network transactions is roughly the same, and the amount involved in the project’s road running is more than twice that of the first two, of which the loss caused by system loopholes exceeds 1 billion US dollars.

In terms of hacker attacks, assets are stolen mainly for five reasons, namely, exchange loopholes, smart contract loopholes, wallet loopholes, public chain loopholes and improper use by users.

In 2019, there were more than 28 exchange security incidents.

More than 70% of digital assets were stolen.

In 2019, there were more than 28 exchange security incidents, among which more than 70% became the theft of exchange digital assets. From January, the Cryptopia exchange was hacked twice, and the stolen ETH and ERC20 currency tokens lost more than 16 million US dollars. On November 27th, 340,000 ETH was stolen from South Korea’s Upbit exchange, with an estimated loss of more than 49 million US dollars. The rest included the escape of the exchange, information leakage of the exchange and other asset losses, with a total loss of more than $1.3 billion.

On the morning of May 8, 2019, the official of Qian ‘an issued a notice saying that "large-scale security vulnerabilities" were found in the system. Hackers used composite technologies, including phishing and viruses, and stole 7,000 bitcoins from Qian ‘an Hot Wallet at a block height of 575,012. Causing the exchange to lose $41 million.

On November 27, 2019, the UpBit security system of the Korean exchange was destroyed and 34,200 ethereal coins were stolen. Causing the exchange to lose more than 50 million US dollars.

More than 100 smart contract vulnerabilities have accumulated losses of more than 10 million US dollars.

There are more than 60 EOS DApp attacks, accounting for 67%.

In 2019, the number of DApp continued to increase. According to statistics, as of the beginning of December, the total number of DApp currently running on public chains such as ETH, EOS and Wave Field exceeded 3,000, and there were more than 100 smart contract vulnerabilities this year, most of which were hacked in EOS DApp. Up to now, the total loss of DApp was over 10 million US dollars.

There are over 60 typical attacks on EOS public chain this year, and the concentrated outbreak period is from January to April, accounting for 67% of the attacks in the whole year. The main reason is the continuous popularity of spinach applications on EOS public chain and the weak security of project contract code, which leads hackers to continuously attack the same vulnerability on multiple DApp. The main methods are transaction blocking, rollback transaction attack, fake EOS attack, random number cracking and so on.

There have been nearly 20 typical attacks on the TRON public chain this year, mainly in April, May and July, with small-scale attacks as the main method and rollback transactions as the main method.

There has been no serious DApp attack on the ETH public chain this year. First, the number of spinach quiz contracts on the ETH public chain is small, and the popularity is not enough. Second, the ETH smart contract project is relatively perfect in terms of security.

There were more than seven wallet security incidents in 2019.

June is the high incidence period of wallet security incidents.

Due to the low entry threshold and poor security, in the absence of supervision, wallet security problems have broken out repeatedly, and it is easy to break out with huge sums of money. At present, there are many hidden dangers in wallet security, including the forgery of wallet APP, the failure to detect weak password in transaction password, the failure to reinforce the core code, the failure to detect the running environment of the system, and the existence of screen capture and recording records in operation.

Since at the beginning of June this year, the wallet GateHub broke out that it had been stolen by more than 23 million XRP, and there were more than 7 wallet security incidents in the whole year, with a loss of over 100 million RMB.

On October 11th, the cryptocurrency wallet ZenGoCEO Ouriel Ohayon tweeted that Safuwallet, a web cryptocurrency wallet, had been stolen by hackers by injecting malicious code.

From August to September, the bitcoin wallet Electrum was attacked by hackers twice. According to many statistics, the phishing attack that forged Electrum upgrade tips has stolen at least 1,450 BTCs, worth 11.6 million US dollars.

There have been more than 8 public chain safety incidents.

More than half of them are 51% attacks, and small and medium-sized public chains are even more threatened.

In 2019, there were more than 8 attacks on public chains, more than half of which were 51% attacks, which reduced the frequency of attacks compared with 2018, resulting in less losses.

Among the public chain attacks, on January 5th, ETC was attacked by 51% for many times, and 80,000 ETCs were used for double flowers. On August 9, hackers launched a "dust attack" on Litecoin, and the affected addresses reached 294,582. At present, it is almost impossible for large enough public chains such as BTC and ETH to be attacked by 51%. All non-large public chains and some small public chain currencies should be careful of the threat from 51% attacks.

When dealing with 51% attacks, we should try our best to keep the computing power scattered. Overconcentrated computing power is the direct cause of 51% attacks. On the basis of Satoshi Nakamoto’s consensus, 51% attacks theoretically exist forever. We should set up a sound early warning mechanism for risk control and adopt a good defense mechanism for exchanges. In case of 51% attacks, we can increase the number of block confirmations, suspend the withdrawal of money, freeze suspicious accounts and other measures to avoid losses in time.

In 2019, the overall safety awareness of users increased.

Improper use by individual users causes asset losses.

In 2019, the overall users’ security awareness increased, and some users still suffered asset losses due to improper operation of wallet private keys and access to phishing websites.

In 2019, Bitcoin became the digital currency with the most traffic in the dark network.

The total transaction value in the whole year was about $1.035 billion.

In 2019, the dark net is still an illegal place for cyber crimes, trading by taking advantage of digital currency’s anonymity to avoid supervision. In the whole year, 1.035 billion dollars worth of bitcoin has been used for illegal activities. The largest category of bitcoin traded in the dark net is drugs, and bitcoin is also the most popular digital currency, followed by Litecoin.

There are many kinds of illegal goods sold in the dark net, mainly involving data, information, illegal software, arms, drugs, etc., and criminals choose digital currency as the trading currency, for example:

In 2019, more than $5 billion in money laundering cases were investigated.

Among them, Bitcoin is the preferred money laundering tool.

In the money laundering cases investigated in 2019, more than 5 billion US dollars were conducted through cryptocurrency, among which Bitcoin was the first choice for criminals to launder money. Digital currency has become an important tool for criminals to launder money around the world. At present, there are 100-200 gambling sites companies in the world that can use digital currency to pay for gambling. Criminals open accounts on these websites, then transfer funds into accounts, engage in some small-scale gambling, and some even do not gamble, and then withdraw money to a new address to achieve the purpose of money laundering.

In 2019, cyberblackmail attacks caused at most $1.5 billion in losses.

All kinds of fraud crimes are still rampant.

Cybercrime includes fraud, extortion, and the destruction of related blockchain service providers. Criminals take advantage of the anonymity of Bitcoin, choose Bitcoin as ransom more frequently, and conduct extortion activities through ransomware or some other illegal means.

In 2019, the cyber extortion attacks caused a loss of $500-150 million to the world, which was 20% higher than last year. The criminal activities of extorting and extorting digital currency have been continuous, even increasing. In addition, this year is still a year of rampant fraud crimes, and all kinds of online fraud incidents still account for a large proportion of online criminal activities. Typical cases are as follows:

The project party’s running involves more than 25 billion yuan.

Plustoken wallet running event involves 20 billion yuan.

In 2019, among the many events of capital plates, pyramid schemes, wallets and exchanges, the most notable event was the incident of Plustoken wallet running on June 29th. On that day, many users reported that Plustoken wallet could not be withdrawn, and the project party of Plustoken wallet was suspected of running, and the amount involved may exceed 20 billion yuan. As of the beginning of December, the blockchain project that ran this year involved more than 25 billion yuan.

The difficulty of mining increases and the income decreases.

Malicious illegal mining indirectly causes social losses.

Power consumption is the main cost of mining, and it is also the key to determine the benefits of mining. With the increasing difficulty of mining, the benefits of normal mining have become lower and lower, and many people have played the wrong idea of illegal mining. Illegal means of mining-Mining Trojans get rewards from digital currency system by completing a large number of calculations. Mining Trojans and worms will occupy a lot of CPU and GPU resources of the computer in the process of calculation, which will cause the computer to become abnormally slow, interfere with the normal system operation, and spread at a high speed, causing great impact and loss to government agencies and enterprise services.

More than 5 typical information leakage incidents in the whole year.

User’s personal data has great hidden dangers due to centralized operation mode.

In mid-2019, a total of more than five typical information leakage incidents were reported. Because many exchanges and wallets are still centralized, it is inevitable to store users’ personal data. Once attacked, hackers may obtain a large number of user data, and sell data through dark networks and other means to obtain huge profits.

Summary and suggestions

Digital currency is widely used for handling fake passports, providing pornographic services, transferring illegal assets, buying and selling drugs and underground arms, which will disrupt social order, pose a threat to the stable development of society, and will also affect the development of enterprises operating normally in the industry, which is undoubtedly extremely harmful to the whole digital currency industry, the financial industry and the whole society.

From the system architecture, related enterprises and professional blockchain security research should organize cooperation to find and fix system vulnerabilities in time to avoid serious large-scale fund theft. Managers of enterprise websites and server resources should deploy enterprise-level network security protection systems to prevent enterprise servers from being invaded and installed with mining viruses and from being infringed by blackmail viruses.

For netizens who participate in digital virtual currency trading, they should fully understand the possible risks and use security software on the computer and mobile phone to avoid falling into the phishing trap and avoiding the theft of digital virtual currency wallets.

For ordinary netizens, computer poisoning should be prevented from becoming a controlled "miner", and game plug-ins, cracking software and video website client cracking tools should be used cautiously, which are more likely to be artificially implanted with malicious programs. For virtual currency, we should guard against speculation.

Original title: "Panoramic scanning 2019 security incident: 28 exchange cases involving $1.3 billion, and the project party ran away with $25 billion"

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　　The colder the weather, the more relaxed and comfortable you should be. Give your body a perfect repair before it freezes, and recommend one thing-doing a Spa. Spas in five-star hotels usually have first-class facilities and services. Give her a five-star spa to keep her warm.

　　Balinese Spa massage

　　Balinese-style SPA uses natural plants and flowers as the main raw materials of SPA, without any chemicals added, and its unique massage technique also makes the patients feel completely comfortable and relaxed. Balinese massage is like a set of soothing stretching gymnastics. The hydrotherapist gently fiddles with your limbs. Maybe there is a slight conflict between your bones and muscles during the process, but it is pleasant after the end.

　　If you have a special love for fragrance, you can choose aromatherapy soul therapy. This unique massage, combined with ancient oriental, Mediterranean, Indian and Arab traditional beauty techniques, can make the skin show a brand-new feeling.

　　Enjoy location: Hilton Hotel (No.8 Wangfujing East Street, Dongcheng District, Beijing)

　　Tofu Spa

　　Spa care with Japanese tofu is the latest project of Yuechun Spa, a garden hotel, which started in September-"Pure Autumn" care. Even in the hot Guangzhou, the invasion of "autumn dryness" is gradually felt. In addition to diet therapy, this special tofu Spa also allows the skin to enjoy a pure baptism.

　　It begins with a velvet-smooth tofu pearl body membrane, which combines moist and gentle honey, pearl essence and special secret recipe. Subsequent "sweet fruity" facial care is the best choice to bid farewell to dry and water-deficient skin in autumn, and the cold compress mask extracts the essence of natural fruits.

　　Men can choose any 90-minute body massage instead of facial treatment.

　　Yuechun’s exclusive feature "Multi-massage" is a clever combination of Thai massage and Swedish massage, and the nurse massages with the palm of her hand, so that her body and mind can fully stretch and naturally enter a relaxed state.

　　Enjoy location: Garden Hotel Yuechun Spa

　　Pearl Spa

　　Pearl beauty, as everyone knows, is a facial treatment with high-quality, ultra-pure and fine nano pearl powder to give skin a beauty nourishment.

　　The "Pearl of the Orient Therapy" in the Qi Spa of Shangri-La Hotel is specially aimed at different skin properties, which is divided into two facial care therapies: neutral oily and neutral dry. The use of nano pearl powder with high efficiency and activity can inhibit the formation of melanin and reduce dark spots on the one hand, and strengthen the nourishment of the skin on the other. In addition, facial acupressure massage and anti-oxidation green tea facial compress can dredge the meridians from the outside to the inside, helping the skin to regenerate and rejuvenate.

　　The whole course of treatment also includes back scrub hot compress cleaning and hot stone back massage, which takes 110 minutes.

　　Enjoy location: Shangri-La Hotel Gas Spa

　　Black rice and ginger Spa

　　The design inspiration of the Grand Hyatt Hotel OSpa is said to come from the clean Baiyun Mountain stream, which incorporates the essence of herbs in harmony with the body and is divided into four themes: beauty, qi, roundness and purity.

　　In the first two stops, we went to two kinds of Spas to beautify the skin. Now let’s make a spa to balance the body and decompress. This is the "round" theme facial whitening care in the OSpa of Grand Hyatt Hotel R&F. First, the body is scrubbed with black rice and red ginger, and then wrapped with ginseng and medlar. At the same time, there are round balanced facial skin care and aromatherapy body massage. This nursing therapy, which combines warmth and rebalancing, can improve and adjust the body and make the body and mind truly quiet and harmonious.

　　Enjoy location: Grand Hyatt R&F Hotel

All relevant units:

　　The Ministry of Industry and Information Technology has started the patent priority review and recommendation work for the winners of the previous artificial intelligence disclosure and the demonstration project units of the Internet of Things. Now, the Notice of the Science and Technology Department of the Ministry of Industry and Information Technology on Organizing the Patent Priority Review and Recommendation Work in the Field of Artificial Intelligence and the Internet of Things (Engineering Letter [2022] No.358) is forwarded to you, and the applicant is requested to prepare relevant materials (in triplicate and one scanned copy) according to the notification requirements before July 9, 2022. The paper version will be sent to Building 5, Yard 57, Yunhe East Street, Tongzhou District, and the electronic version will be sent to Lianghuajun @ jxj.beijing.gov.cn. After review by our bureau, we will recommend it to the Ministry of Industry and Information Technology.

　　Attachment: Notice of the Science and Technology Department of the Ministry of Industry and Information Technology on organizing the priority examination and recommendation of patents in the fields of artificial intelligence and Internet of Things

Beijing Bureau of Economy and Information Technology　　　　

June 20, 2022　　

　　(Contact: Zhang Tan Tan/Liang Huajun; Tel: 18701022398/55578312)

0one　　Pause normalized nucleic acid screening in many places.

On July 3, Shijiazhuang, Baoding, Tangshan, Zhangjiakou, Dingzhou, Chengde and other places in Hebei successively issued notices to adjust the normalized Covid-19 nucleic acid screening work:

　 First, since July 4th, the city’s weekly normalized Covid-19 nucleic acid screening has been suspended. 　 　　

Two, since July 4th, residents to enter public places and take public transport, no longer check the negative certificate of nucleic acid or "nucleic acid has been collected certificate" within 7 days. 　 　 　 　　 　 　 　 　 　 On the same day, sanhe city, Hebei Province issued a message, demanding that commuters should be well managed, and commuters can pass by scanning the "Three Rivers Epidemic Protection Pass" when they return, and no longer require daily nucleic acid testing. Xinji city made it clear that the above adjustments will be implemented from July 5th. The grassroots doctors’ commune noted that the suspension of normalized nucleic acid screening in many cities at the same time was mainly based on the "Several Measures on Comprehensively Implementing the Ninth Edition of the Prevention and Control Plan and Scientifically and Accurately Doing a Good Job in Epidemic Prevention and Control" issued by the Health and Health Commission of Hebei Province on July 2. The document is clear:In areas where there is no epidemic, in principle, weekly preventive nucleic acid screening for all staff is not carried out. 　 　 　 　 　 　 　 　 Besides,For those who enter Hebei in areas without epidemic risk, the negative certificate of nucleic acid detection within 48 hours will no longer be checked, and the landing nucleic acid detection will no longer be implemented.Hebei Province requires that all localities and departments should implement the requirements of the Prevention and Control Plan (Ninth Edition) to the letter, immediately adjust relevant prevention and control measures as required, and resolutely prevent the phenomenon of layer upon layer overweight. If the previously issued epidemic prevention and control policies and measures are inconsistent with the Prevention and Control Plan (Ninth Edition), they shall be implemented in accordance with the Prevention and Control Plan (Ninth Edition) and this notice. 　 　　

02 Implement national nucleic acid screening requirements and issue new policies in many places. 　 　　

After the release of the ninth edition of the prevention and control plan on June 28, the state held a meeting to emphasize that all localities and departments should strictly implement the ninth edition of the prevention and control plan, resolutely control the management, resolutely implement the implementation, resolutely cancel the cancellation, and clean up inconsistent measures within a time limit. At the same time, the the State Council Joint Prevention and Control Mechanism Comprehensive Group will send a working group to supervise the local implementation. In this context, in addition to the above-mentioned Hebei and other places, the requirements for nucleic acid detection have been adjusted in many places across the country in the past week, and the adjustments are mainly divided into five categories: 　 　

　 1. Cancel all the nucleic acid tests. 　 　　

Liaoning: On July 1, the latest notice was issued, saying that each city will determine the frequency of nucleic acid testing for all employees on its own according to the actual judgment. After the outbreak, it is confirmed that there is no social infection, and the whole staff can stop nucleic acid testing. Many places in Anhui: In view of the current low risk in the whole region, the nucleic acid detection work of "conducting a full-time nucleic acid inspection every 7 days" was cancelled. 　 　　

2. The frequency of nucleic acid is adjusted to "check once every 7 days" 　 　　

Jinan City, Shandong Province: Normalized nucleic acid detection frequency was adjusted from "two inspections every seven days" to "one inspection every seven days" in Qingdao, Shandong Province: Normalized nucleic acid detection frequency was adjusted from "one inspection every four days" to "one inspection every seven days" in Ningbo and Hangzhou, Zhejiang Province: from "one inspection every three days" to "one inspection every seven days" in Wuhu, Anhui Province. 　 　　

3. The frequency of nucleic acid is adjusted to "check every 5 days" 　 　　

Wuhan: from "three days for inspection" to "five days for inspection" 　 　　

4. Extend the validity of nucleic acid detection to 72 hours. 　 　

　Pingdingshan, Puyang, Xuchang and other places in Henan Province: Extend the effective time of nucleic acid detection to 72 hours. 　 　　

5. No longer check the negative certificate of nucleic acid. 　 　　

Huizhou, Guangdong: Travellers in airports, railway stations and bus stations are no longer required to hold a negative certificate of 48-hour nucleic acid test. Dezhou, Shandong: People attending theaters no longer require a "48-hour nucleic acid test certificate". On the whole, due to the influence of national prevention and control policies, nucleic acid testing has become the first step of policy adjustment in various places. The validity period has been extended from 48 hours to 72 hours, and then extended to 7 days, even suspended or cancelled, and the national prevention and control has shown a trend of slow liberalization. 　 　　

03 Prevention and control of "willfulness" plus code? The state has requirements. 　 　 　　

Since the normalization of nucleic acid detection, problems such as unauthorized overweight have frequently appeared, which has seriously affected the normal life and travel of the people, and the state has a clear attitude.At the end of April,The meeting in the State Council emphasized that the frequency of nucleic acid detection should be determined by local authorities according to the occurrence and development of epidemic situation and the need of prevention and control, and it should not be "one size fits all". At the end of June, the State Council took the lead in setting up a special class to rectify the problem of "layer upon layer overweight" and opened a public message board on the homepage of official website, National Health Commission. 　 　 　 　 　 　 In order to ensure the simplification of epidemic prevention and control, "one size fits all" and "layers of overweight", the state requires all provinces to announce the channels for complaints and reports from the masses and accept extensive supervision from all walks of life. According to the incomplete statistics of grass-roots doctors’ commune, up to now, the following provinces (cities, districts) have announced the complaint reporting methods about the overweight problem of local epidemic prevention and control. 　 　 　 　 Although the epidemic has not been completely extinguished, compared with Covid-19, the act of wanton overweight and absurd self-protection is even worse.　 　 　

　
　　Since the American government announced its National Nanotechnology Plan (NNI) to the whole world in March 2000, nanotechnology, a little-known technical vocabulary in the 20th century, has become a high-frequency word when the media reported on scientific and technological plans and progress. Even some lawless elements use it to deceive some people who like "technology fashion".
　　
　　Nanotechnology refers to:
　　Nanotechnology will trigger a new industrial revolution in the 21st century. Undoubtedly, the birth and development of nanotechnology has opened up a new level of human understanding of the world, and extended human ability to transform nature directly to atoms and molecules, marking a new era of human science and technology. Scientists pointed out that nanotechnology will have a far-reaching impact on the development of productive forces, and it is possible to fundamentally solve a series of problems currently faced by mankind, such as extremely important problems such as environment, food and energy. Nanotechnology will be one of the leading technologies in the 21st century. The science and technology adviser of the President of the United States also spoke highly of the importance of nanotechnology to the future development of knowledge economy. He believes that the benefits brought by the development of nanotechnology to social development, economic revitalization and the improvement of people’s quality of life will be incomparable to general technology, and the wealth created by nanotechnology in the 21 ST century is also incalculable. The influence and penetration of nanotechnology in various fields may exceed that of computers. (Olympic Science and Technology Website)
　

CCTV News:On July 20, the State Council held a press conference on promoting the development and growth of the private economy. Xu Xiaolan, Vice Minister of the Ministry of Industry and Information Technology, introduced that the Ministry of Industry and Information Technology has focused on the following aspects:

First, focus on improving the rule of law environment. In-depth implementation of the Law on the Promotion of Small and Medium-sized Enterprises to promote the introduction of supporting regulations, this year marks the 20th anniversary of the promulgation and implementation of the Law on the Promotion of Small and Medium-sized Enterprises, and at present, 27 provinces (cities) have issued regulations on the promotion of small and medium-sized enterprises in their own regions. Carry out in-depth work to clean up the accounts owed to small and medium-sized enterprises and protect their legitimate rights and interests.

The second is to improve the policy environment. We promoted the introduction of a series of policies, such as "Several Measures to Help Small and Medium-sized Enterprises to Stabilize Growth and Adjust Their Structural Strength". Last year alone, more than 40 policies were issued at the national level to support small and medium-sized enterprises, which led to more than 270 supporting policy documents issued at the provincial level. At the same time, we earnestly implemented policies, compacted all responsibilities, and effectively allowed small and medium-sized enterprises to enjoy policy dividends.

The third is to continuously optimize the innovation environment. We have carried out the "three taxes" special actions of digital empowerment, scientific and technological achievements empowerment and quality standard brand assignment for small and medium-sized enterprises to enhance their core competitiveness. Cultivate small and micro enterprises’ entrepreneurial innovation demonstration bases and small and medium-sized enterprises’ characteristic industrial clusters, build innovation carriers and gather innovative resources in all aspects. Improve the gradient cultivation system of high-quality small and medium-sized enterprises, and stimulate the emergence of more specialized and innovative small and medium-sized enterprises.

The fourth is to continuously improve the financing environment. Promote banking financial institutions to increase credit supply to small and medium-sized enterprises, promote new models such as loan-with-loan and loan-with-loan, and promote the incremental expansion of inclusive small and micro enterprise loans. Focus on key industrial chains and carry out the financing promotion action of "one chain, one policy and one batch" for small and medium-sized enterprises. Support the listing and financing of specialized and innovative small and medium-sized enterprises, give play to the guiding role of the national small and medium-sized enterprise development fund, and drive more social capital to invest in early investment and small investment innovation.

The fifth is to speed up the construction of an efficient service system. Promote the initial formation of a service system for small and medium-sized enterprises, with nearly 1,700 public service institutions for small and medium-sized enterprises at the national, provincial, municipal and county levels as the backbone, more than 3,800 service demonstration platforms at or above the provincial level as the support, and a large number of social service institutions as the supplement. In the first half of the year, there were more than 7 million service enterprises of various service organizations nationwide.

In order to further promote the optimization of the development environment of small and medium-sized enterprises in various places, the Ministry of Industry and Information Technology, in accordance with the legal requirements of the Law on the Promotion of Small and Medium-sized Enterprises, has regularly carried out third-party evaluation of the development environment of small and medium-sized enterprises since 2019, covering 36 key cities across the country, and the effect of "promoting construction by evaluation, promoting reform by evaluation, and promoting Excellence by evaluation" has gradually emerged. In the next step, the Ministry of Industry and Information Technology will continue to improve the work system, policies and regulations system and quality service system from the above five aspects, continuously optimize the development environment, and create a market-oriented, legal and international business environment for small and medium-sized enterprises.

Wisdom things (WeChat official account: zhidxcom)
Text | Wei Shizhen

On May 7 th, MediaTek just announced the launch of a technically enhanced version of the Dimensity 1000 series-Dimensity 1000+ chip, based on the performance of flagship platform Dimensity 1000 series, also adopts 7nm process technology.On this basis, Dimensity 1000+ aims at5G power consumption, screen refresh rate, gaming experience, and display quality.All four aspects have been upgraded accordingly.

"As the flagship 5G SoC, MediaTek Dimensity 1000 Series not only has powerful performance, but also comprehensively optimizes the user experience of 5G smartphones through technology upgrades." Dr. Li Yanji, deputy general manager of MediaTek Wireless Communication Division, said that Dimensity 1000+ based on’s 5G, power saving, screen, games and video technologies in MediaTek has further brought better flagship 5G experience to high-end users.

It is reported that,Dimensity 1000+ chip will be launched in iQOO, a sub-brand of vivo, and will be released in a short time.

▲ Li Junnan, Director of Technical Planning, MediaTek Wireless Communications Division

In the media interview after the meeting, Dr. Li Yanji, deputy general manager of MediaTek Wireless Communication Division, mentioned that although the novel coronavirus epidemic this year had an impact on the production capacity and sales of mobile phones in the first quarter, MediaTek’s judgment on the entire domestic 5G market would not change much. At present, the planning of 5G products in MediaTek is still in progress.

Dimensity 1000+ adopts MediaTek 5G UltraSave power-saving technology developed by MediaTek, which has the functions of C-DRX energy-saving management and BWP dynamic bandwidth regulation, and can dynamically adjust the working mode according to the network environment and data transmission, such as power supply configuration and working frequency.

Li Junnan, technical planning director of MediaTek Wireless Communication Division, mentioned that this technology can further reduce the 5G power consumption of terminal equipment, and at the same time, compared with competitors of the same level of friends, the average 5G power consumption of Dimensity 1000+ is reduced by 48%.

In addition, Dimensity 1000+ also supports 5G dual-carrier aggregation aggregation and 5G+5G dual card dual standby.

In terms of screen, Dimensity 1000+ supports a screen refresh rate of 144Hz, and the screen presented per second is 2.4 times that of the ordinary 60Hz screen. Li Junnan said that the screen refresh rate of 144Hz can greatly reduce the smear and jamming problems in applications such as high-frame videos and games.

In terms of game optimization, Dimensity 1000+ is equipped with MediaTek HyperEngine 2.0 game optimization engine, which optimizes the intelligent load control engine, network optimization engine and control optimization engine on the basis of the previous generation technology, further enhancing the experience of game transition, network and peripheral control.

1. Intelligent load control engine: game fast transition.

This technology can accelerate the rapid transition of the game, intelligently adjust CPU, GPU and memory resources, and realize low-power operation while taking into account the full frame of the picture.

Compared with the flagship of Youshang, Dimensity 1000+ can reduce the power consumption of playing games under 5G by up to 32%.

2, network optimization engine: game/video call uninterrupted network.

This technology allows users to keep the connection between games and video calls stable and smooth when they encounter incoming calls while playing games or video calls.

In addition, the network optimization engine also supports intelligent 5G/4G switching, which can intelligently detect users’ network throughput and bandwidth requirements, select the best network transmission, and reduce the average power consumption by up to 60%.

3, control optimization engine: Bluetooth /Wi-Fi low delay anti-interference.

HyperEngine 2.0′ s control optimization engine technology optimizes the Bluetooth transmission of devices, which can reduce the delay of game sound, picture and control synchronization.

At the same time, the engine also has Wi-Fi/BT anti-jamming technology, which realizes the parallel transmission of Bluetooth and Wi-Fi, further reducing the delay of Wi-Fi network, and the longest delay is reduced by 25%.

4. MiraVision image quality engine: real-time frame-by-frame tuning of 4K video.

The chip-level MiraVision image quality engine is based on the independent AI processor APU3.0, which mainly includes three technologies: AI scene image quality optimization, HDR10+ support and video HDR enhancement.

In AI scene quality optimization (AI-PQ), the engine can dynamically adjust the contrast, sharpness and color of each frame according to AI scene recognition. At the same time, it also supports HDR10 and HDR10+ image quality standards, which can adjust the image details and dynamic range of 4K video images frame by frame.

In terms of video HDR enhancement, MiraVision image quality engine can realize real-time partition operation of 4K images, and enhance the ordinary SDR video source to HDR display effect in real time while further improving the high dynamic range of video.

In the application of AR, Dimensity 1000+ uses ISP (image signal processing) image technology, based on the AI computing ability of APU 3.0, and supports five hand recognition models: Detection, Tracking, Skeleton, Gesture and Verification.

At the same time, it also supports real-time operation of AI 3D gesture tracking, including detecting human gestures, multi-joints and degrees of freedom, position and rotation of hands in space, and performing real-time rendering and seamless splicing of pictures.

In the media interview after the meeting, Li Yanji mentioned that AI technology is still in the high-speed development stage, and there are more and more AI applications on mobile phones, including camera algorithms, while MediaTek has been actively developing advanced image processing technology, making full preparations for market competition.

In addition, with the gradual maturity and landing of 5G technology, video has become an important explosion point. This time, Dimensity 1000+ has also made a series of optimizations and upgrades for 4K video.

So what important plans has MediaTek made in the 8K field?

In Li Junnan’s view, at this stage, 8K technology is still in the stage of technology demonstration, and the resolution of most mobile phones and TVs has not reached the 8K standard. Therefore, MediaTek will still focus on the improvement of 4K technology, but 8K technology is also under development.

Through this release, we can see that compared with Dimensity 1000 chip, Dimensity 1000+ not only has lower 5G power consumption and 144Hz screen refresh rate, but also has upgraded the game and video call experience to varying degrees.

With the release of Dimensity 1000+, MediaTek Dimensity 1000 series has three flagship chip products: Dimensity 1000L, Dimensity 1000 and Dimensity 1000+.

In fact, as an upgraded version of Dimensity 1000 chip, Dimensity 1000+ is not a performance improvement and supplement for MediaTek’s previous Dimensity 1000 series.

But from another perspective, Dimensity 1000+ meets the demand of low power consumption and low latency for 5G technology, which further provides an effective solution for the increasingly mature and huge 5G application scenarios.

In the short term, iQOO mobile phone equipped with Dimensity 1000+ will be on the market soon. Will Dimensity 1000+ bring you more surprises? We will wait and see.

Build a safe water supply barrier to ensure that water is safe.

The continuous high temperature and rainless weather has caused the city’s drought prevention and relief work to face a severe situation. The Municipal Flood Control and Drought Relief Headquarters issued a circular, and at 9: 00 on August 14, the city-wide level IV emergency response was launched.

Yesterday, the reporter learned from Liuyang Economic Development Zone Water Company that the daily water supply of the park has been rising since the dog days. On August 16th, the water consumption reached 178,000 tons, nearly 10,000 tons more than the highest daily water consumption last year, and the water demand is still rising.

"People’s livelihood is no small matter. In any case, we must guarantee the production and living water of Yangxin City enterprises and residents." Zhang Juanjuan, chairman of Liuyang Economic Development Zone Water Company, stressed many times when deploying the summer peak water supply work.

Ensure water supply, maintain equipment operation, strengthen inspection of production equipment, encrypt the frequency of water quality inspection, strengthen water purification treatment, and advocate water conservation … Since June, Liuyang Economic Development Zone Water Company has arranged a number of measures in advance around the summer peak water consumption to ensure that enterprises can use water without worry.

Liuyang Rong Media Center reporter Zhang Yonghong correspondent Li Ning

Steady supply

Strengthen the inspection of water supply equipment to ensure water supply.

At 4 o’clock on the afternoon of August 16th, Jinyang No.1 Water Plant, the hot sun was roasting the earth, the outdoor temperature was as high as 38℃, and the heat waves burst. The staff of the water plant were busy inspecting the production equipment.

Water plants, water pumps, motors, hydraulic valves, frequency converters … The more water supply equipment and supporting facilities there are, the longer they stay. In the sauna-like working environment, the mind of the staff remains highly awake and carefully checks every screw and dial.

According to the relevant person in charge of Liuyang Economic Development Zone Water Company, in order to ensure a smooth water supply peak, four water plants in Jinyang New City have been started simultaneously, and Jinyang No.1 Water Plant is close to full capacity.

"The temperature is high, the equipment runs for a long time, and the heat dissipation is not enough, which is easy to break down. In order to find and solve problems in advance and avoid failures, we have increased the number of inspections and increased the maintenance of equipment. " According to the person in charge, in order to ensure the normal and safe operation of the equipment, at present, the four water plants strictly implement the 24-hour duty inspection system, and the duty personnel conduct inspections every 2 hours. For inspection workers, high-temperature roasting and indoor "sauna" have become commonplace, and they walk nearly 20,000 steps a day.

Water quality preservation

Take samples every hour to ensure the safety of water quality.

In the continuous high temperature weather, the water level of Laodao River is reduced, the flow rate is reduced, and the flow velocity is slow. Floating objects, fallen leaves and dead branches in the river flow to the intake, which may cause the intake grille to be blocked and affect the quality of raw water.

On the afternoon of August 16th, Huang Youtong, Luo Qingjun, Deng Jie, Li Chengquan and others, the staff of No.1 Water Plant of Liuyang Economic Development Zone Water Company, came to the river to prepare to go down the river to clean up the sundries near the water intake. They change their work clothes and put on life jackets. A straw hat, a rake and a pair of hands are all their "equipment".

Bend over, salvage, get up … They kept repeating these actions in the hot sun, and the boat was gradually filled with debris. After more than 20 minutes, the water surface near the water intake finally became clean and unobstructed.

"Ensuring smooth water intake is the basis for normal water supply during peak hours." Huang Youtong said that during the dry season, they have to clean up every two days or so.

In order to ensure the continuous and stable water quality of water supply in hot weather, Liuyang Economic Development Zone Water Company has also increased the frequency of testing. Samplers sample and test source water, factory water, pipe network water and terminal water once every hour to keep abreast of water quality changes.

In addition, the water plants of the water company have also organized staff to clean the process tanks such as sedimentation tanks and filter tanks for many times to ensure the cleanliness of the process tanks and avoid the influence of sediment deposition on the water treatment process effect and water supply quality.

Excellent service

The maintenance team is on standby 24 hours a day to solve the water problem in time.

On the afternoon of August 15th, some people reported that a water supply supervisor in Yongtai Road had a water leakage problem. In order to avoid the impact of water stoppage and maintenance during the daytime peak period on the water consumption of enterprises and residents, the maintenance team of the business service center of Liuyang Economic Development Zone Water Company worked overtime at night for emergency repair, and the water pipe maintenance was completed at midnight.

In order to deal with water pipe leakage and other problems in time, maintenance personnel are on standby 24 hours a day, fighting for maintenance in such a hot and humid working environment as a narrow water meter well.

As hot as the hot weather at present, there is also the service enthusiasm of the staff of the business service center of Liuyang Economic Development Zone Water Company. The person in charge of the business service center said that during the peak period of water use, the number of water consultation and repair calls also increased sharply. In order to ensure the water demand of residents in Jinyang New Town and practice the practical requirements for the people, the staff of the service center patiently answered all kinds of water-related consultation and repair calls, recorded and classified the relevant information, and timely fed it back to the relevant departments of the company to ensure that every problem could be accepted in time.

"If there is a water problem, residents of Jinyang New Town can call our 24-hour service hotline at any time, and we will do our best to provide services." According to the person in charge, the service hotlines are 0731-83280619, 8322002 (Liuyang Economic Development Zone), 0731-83202583 (Yongan Town), 0731-8324715 (Jiaoxi Town) and 0731-83280658 (Dongyang Town).

These days, friends, friends and WeChat groups can always see everyone’s concern about nucleic acid detection and discuss the COVID-19 epidemic. Since then, nucleic acid detection has become a high-frequency word. But do you really know about nucleic acid testing? What is the nucleic acid strategy under the most severe and complicated situation faced by Chongqing since the COVID-19 epidemic?

In this issue of "Knocking on the Blackboard", Xiaobian will focus on these issues.

The role of nucleic acid detection—It is recognized by the medical communityThe "Gold Standard" for Diagnosing Covid-19

Why do you want to do nucleic acid testing? On November 27th, at the 150th press conference on the prevention and control of COVID-19 epidemic in Chongqing held by Chongqing Municipal Government Information Office, Li Pan, deputy director of Chongqing Municipal Health and Wellness Committee, once again stressed clearly:

Nucleic acid detection is the "gold standard" recognized by the medical community in diagnosing Covid-19. It is an important measure to quickly find infected people, lock the source of infection in time, and quickly cut off the route of transmission. It is a key measure to realize early detection, early reporting, early isolation and early treatment.

(Related links: press conference, responding to concerns-will you be infected in the process of making nucleic acid? What is the difference between regional nucleic acid and expanded nucleic acid?)

At the 147th press conference on November 22nd, Luo Fei, an expert from Chongqing CDC, made an analogy.

If antigen testing is an auxiliary team and nucleic acid testing is the main player; antigen testing is an attack by innuendo, then nucleic acid testing is the final word.

(Related links: press conference, responding to concerns-which is more useful, antigen or nucleic acid? Is the nucleic acid test result true?)

From a professional point of view, the positive result of nucleic acid detection can be regarded as the same as the result of virus culture and then detection. Covid-19 nucleic acid detection is to select two or three characteristic sequences on the virus genome, copy and amplify them, and then detect and compare them, which is what we often call double-target or triple-target detection.

Because the conservative gene sequence of virus is usually selected as the target gene in nucleic acid detection, even if the virus mutates, it has little effect on the detection ability. Nucleic acid detection requires high detection reagents, detection facilities and equipment, and requires professionals to complete more complicated processes such as collection and detection.

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• Xiaobian analogy-
• Nucleic acid testing is like "raising a baby chicken". When the chick is very young, most people can’t see the male and female, but when the chick is raised, you will know it when you look at the comb.
• Why does it take several hours for nucleic acid testing to produce results? In fact, it is to cultivate viruses, or to raise chickens. Covid-19 nucleic acid detection is equivalent to using cockscomb as a feature to identify male and female, which is the so-called "target gene". At the same time, it is not easy to misjudge if it is characterized by cockscomb, but it is easy to misjudge if it is characterized by chicken feet and tail, so cockscomb is the so-called "conservative gene".

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At the 151st press conference on November 27th, Liao Pu, director of the Laboratory Department of Chongqing People’s Hospital and deputy director of Chongqing Clinical Laboratory Center, also explained the nucleic acid detection.

(Related links: Why is nucleic acid detection the "gold standard"? What about "false yin" and "false yang")

At present, Covid-19 nucleic acid detection usually uses fluorescence PCR amplification technology, and its principle is that viral nucleic acid is increased exponentially through one cycle, so as to realize Covid-19 nucleic acid detection. This is a very classic and reliable nucleic acid detection method, and it is a technology that won the Nobel Prize.

In the detection process, the yin and yang of the detection results are objectively judged by the circulating threshold of nucleic acid amplification, that is, Ct value. The Ct value is related to the viral load of the infected person. The lower the Ct value of the infected person, the higher the viral load of the infected person. Conversely, the higher the Ct value, the lower the viral load of the infected person.

For the report of positive results, according to the detection strategy, one or two other nucleic acid detection reagents that are more sensitive and amplify different regions will be used to detect the original samples when necessary, and the positive results will not be reported until they are confirmed, so sometimes the detection time is longer.

Although nucleic acid detection technology is the recognized gold standard in Covid-19, it is an internationally recognized detection technology for mature pathogens. However, the so-called "false negative" may appear in unreasonable sample collection, transportation and processing, too low virus droplets in the sample, variation of the target sequence to be detected or sequence change caused by other reasons.

For sudden and new subtype Covid-19, such as Omicron mutant, which has the characteristics of concealment, the optimal sampling time for detection may not be confirmed. In addition, in the process of sample collection and detection, pollution caused by aerosol will occur, resulting in false positive. By strengthening laboratory quality control, monitoring laboratory environment and equipment pollution, and multiple rounds of nucleic acid screening, we minimize the errors caused by technical reasons.

Strategies for nucleic acid detection-different strategies at different stages according to the needs of epidemic situation.

These days, users always leave messages asking questions. Why do you do nucleic acids in different areas?

Indeed, since November 1, especially since November 12, when the coordinated prevention and control of the central city was carried out and the epidemic annihilation war was launched, the Chongqing epidemic prevention and control headquarters adopted different nucleic acid detection strategies at different stages according to the needs of the epidemic situation.

For example, the social inspection has been carried out once every seven days, once every day and every other day. After the city launched the social clean-up attack, according to the deployment of classified attack, all districts and counties were divided into three categories: relatively stable epidemic situation, fluctuating platform period and severe situation, to carry out nucleic acid testing.

Li Pan spoke carefully at the press conference on the evening of November 26th. Under the provisions of the ninth edition and Article 20, various localities will formulate different strategies according to the situation of this area, street, community and even community. Specific to this round of epidemic in Chongqing:

At the beginning of the epidemic, the central city of annihilation was fought-

The epidemic situation is multi-point, multi-source and multi-chain. I don’t know where the potential infected people are, and the chain is unclear. For example, "I don’t know where the’ enemy’ is", then take the whole central city as a whole and carry out nucleic acid testing all over the region, and do it every day, which is to find out the potential infected people. After searching for a period of time, I marked a high-risk area.

Fight the tough battle in the central city in the stage of social clearing-

At this time, it is: high-risk areas should be zoned quickly, and nucleic acid testing should be carried out at the specified frequency in high-risk areas; in other areas, because there is still community transmission, it is necessary to "check every other day" and strive to promote social clearing.

Yuzhong, Jiulongpo, Jiangbei and Yubei made three rounds in three days-

Li Pan said at the press conference on the evening of November 26th that the epidemic situation in all districts of the central city was divided, and some districts added thousands of people a day, with a high proportion of society.

Therefore, just like the annihilation war at the beginning of the epidemic, Yuzhong District, Jiulongpo District, Jiangbei District and Yubei District decided to make three rounds in a row for three days, and continue to exert their strength and concentrate their efforts to find out the potential infected people and the risk sources in a short time.

Similarly, the same is true of Liangping, Dianjiang and Xiushan. The difference is that it is not the whole district (county), but the streets where the county is located and the streets involved in the epidemic.

Xiaobian said so much, we can see that the nucleic acid strategy must be a specific arrangement made according to the current epidemic situation. It is about strategy and actual situation. I hope parents will understand and support it.

Organization of nucleic acid detection-this is an important link, and the organizer must pay attention to it.

This point, Xiao Bian should remind the organization unit of nucleic acid detection, because it is really important.

The organization of nucleic acid detection directly affects the detection quality and screening effect. Staff organization, testing resource allocation, testing object organization, and centralized sampling or sampling by building, unit and floor are all important factors.

For example, on November 26th, some districts and counties reported that "nucleic acid test samples were left behind", which may affect the accuracy and quality of nucleic acid screening for whatever reason, indicating the importance of organizational work.

At the same time, there are still many people who are concerned about the organizational level of nucleic acid testing institutions and the professional ethics of staff, which will also directly affect the testing quality and screening effect.

For the sake of everyone’s health and this city, please ask the organizers of nucleic acid testing to follow the process, make the work meticulous and put the management in place! Please!

(Related links: press conference, responding to concerns-Is nucleic acid testing true or not? Are you sure?)

Can nucleic acid be infected? Everyone should take personal protection, so don’t worry about it.

This point, Li Pan also made a detailed introduction. In fact, you don’t have to worry about doing nucleic acid testing and being infected.

Statistics show that more than 60% of the newly infected people are residents of the same building, the same neighborhood and the same community. The route of infection is often in community activities, with acquaintances and friends, shopping together, and taking express mail together (among them, infected people), without protection or standardized protection and contact.

However, there are very few cases of infection directly in the queue of nucleic acid collection or in the process of nucleic acid collection, but the results of flow adjustment are not supported, so don’t worry.

For high-risk areas, there are positive buildings and units that are tested at home, not to mention worrying.

Look, really don’t worry too much. As long as everyone takes personal protection and adheres to the "one meter distance", this situation can be put an end to.

(Related links: do nucleic acid, remember "5321"!)

Supervision of nucleic acid detection-never be soft when it comes to the end, and please continue to supervise the general public.

On November 24th, at the 148th press conference, Dan Yanzheng, deputy mayor of Chongqing Municipal Government, commander of the municipal epidemic prevention and control command department and director of the comprehensive office, said: At present, the results of nucleic acid testing in the whole city are authentic, so please rest assured.

He said-

Chongqing Municipal Party Committee and Municipal Government have always attached great importance to the quality of nucleic acid detection. In this round of epidemic, in view of the laboratory quality problems with a large amount of detection and public concern, on the basis of monthly laboratory quality assessment and quality control spot check in the early stage, the Municipal Health and Health Commission strengthened management supervision, with municipal quality control experts "conducting daily inspections" and district and county experts "guiding at the station", participating in laboratory management throughout the process, and promptly urging and rectifying problems such as irregular management and process of individual laboratories.

For violations of laws and regulations, we will maintain a high-pressure situation, and immediately start the investigation procedure according to law for the detection errors reflected by the public. Once found, hell to pay.

Ability of nucleic acid detection-Thanks to the strong support of brother provinces and cities, the ability of nucleic acid detection in Chongqing has been enhanced.

Everyone must have noticed that the staff and volunteers of nucleic acid detection are very hard: airtight protective clothing is worn for most of the day or even a day; alcohol cleaning gloves are constantly rubbed, cotton swabs are torn open and carefully sampled …

Especially in the face of this round of large-scale epidemic and large-scale nucleic acid detection, the whole nucleic acid detection system in our city is facing the pressure of long-term and full-load operation, and there are problems such as staff fatigue, high-speed operation of nucleic acid system and obvious lack of detection ability.

In this regard, under the guidance and support of Chongqing Working Group of the State Council Joint Prevention and Control Mechanism, Chongqing has received strong support from some brother provinces and cities, which has enhanced the strength of nucleic acid detection in our city.

(Related links: Medical teams from 8 provinces and cities in China rushed to Chongqing and successively entered Cuntan and Yuelai Fangcang Hospital to carry out medical treatment.)

What should we do-participate in nucleic acid testing as required!

Li Pan said that the majority of medical workers are fighting hard, hoping to eliminate the doubts of some citizens through continuous efforts and higher-quality nucleic acid testing.

What should we do personally to support nucleic acid testing? It’s simple—

Participate in nucleic acid testing as required! This is not only responsible for personal health, but also the need to prevent others from being infected.

At present, the incubation period of Covid-19 is usually 2-4 days, the shortest may be 1 day, or even less than 1 day, and the longest may be 8 days. Therefore, the management policy for close contacts is "5+3" (5 days of centralized isolation and 3 days of home observation) to minimize risks.

The high-risk area is managed by this scientific law, and it will be reduced to a low-risk area after 5 days without sunshine. But this does not mean that there is no risk, and we must continue to observe. If there is mobility, contact, activity and aggregation in the high-risk area, it will cause new infections. If there is a new positive test, the time will be recalculated.

Therefore, lifting the high-risk area does not mean unsealing, but also strengthening observation. In particular, the current epidemic situation in the central city is still severe and complicated, and it is still the coordinated prevention and control of the central city and the implementation of social control.

Here, Xiaobian asks everyone to understand, support and cooperate with various prevention and control measures as always, especially for nucleic acid testing-

Dear friends, don’t give up and refuse the nucleic acid you should do. Only by doing a thorough examination can you find the infected person as soon as possible, block the transmission chain, win a complete victory in the annihilation war as soon as possible, and return to the fireworks of this city as soon as possible.