Adhere to the general policy of "dynamic zero clearance" without wavering, these ways can purchase antigen detection reagents... Authoritative response!

The joint prevention and control mechanism of the State Council held a press conference on March 15 to introduce the situation related to epidemic prevention and control and vaccination work. Let's take a look at --

Epidemic situation

The world is experiencing the peak of the fourth wave of COVID-19

At present, the world is experiencing the peak of the fourth wave of the new crown epidemic, with more than 10 million new cases reported every week for ten consecutive weeks, showing a rapid upward trend in the Asian region, and the relevant countries and regions around the mainland continue to refresh the record for the highest number of new cases in a single day, and the risk of epidemic introduction is increasing.

Since March, more than 15,000 cases of infection have been reported in the home outbreak

Since March this year, the frequency of local epidemics caused by imported epidemics from abroad has increased significantly, and the scope of the impact has been expanding. From 1 to 14 March, more than 15,000 cases of infection have been reported in the local epidemic, affecting 28 provinces. It is mainly a variant of Themikron, which spreads quickly and has strong concealment.

Recently, the epidemic situation in Jilin, Shandong, Shanghai, Guangdong, Hebei and other places is still developing, and the epidemic situation in some areas has risen rapidly, and the risk of social spread and spillover is relatively high. In general, the current local cluster epidemic situation shows the characteristics of many points, wide coverage and frequent occurrence, and the epidemic prevention and control situation in the mainland is severe and complex, and the difficulty of epidemic prevention and control has increased, but the overall situation is still under control.

The comprehensive group of the joint prevention and control mechanism of the State Council has sent working groups to Jilin, Guangdong, Shandong, Hebei, Yunnan, Heilongjiang and other places to guide relevant areas to implement prevention and control measures more resolutely and scientifically and accurately, improve the efficiency of on-site command, accelerate the screening of nucleic acids, find out the background of the epidemic and stabilize the overall situation; promote the isolation and transfer of circulation, check and control risk personnel, manage them, control the local cluster epidemic situation as soon as possible, and consolidate the results of epidemic prevention and control.

Adhere to the general strategy of "external prevention of import, internal prevention of rebound" and the general policy of "dynamic clearance" without wavering

Practice has proved that the mainland's current general policy of "dynamic zero clearance" and a series of prevention and control measures are effective in responding to the epidemic situation of the Aumechjong variant. It is necessary to adhere to the general strategy of "external prevention of imports, internal prevention of rebound" and the general principle of "dynamic clearance", take decisive measures, quickly trace the source, rapid nucleic acid screening, standardize centralized isolation, strict community control, timely regional investigation, check and fill in prevention and control loopholes, and do not compromise to the letter that should be inspected, isolated, and treated.

What is the current treatment of new confirmed cases in Jilin Province?

As of the morning of March 15, there were 8,201 hospitalized cases in Jilin Province (mainly concentrated in Changchun City and Jilin City), of which 2 cases of critical illness and 2 cases of severe disease in Jilin City, and 2 cases of severe disease in Changchun City, the proportion of ordinary type is about 4%, that is to say, more than 95% of patients are asymptomatic infected and mild cases.

At the first time, a national expert team was dispatched to Changchun City and Jilin City to guide the medical treatment work of Jilin City and Changchun City, and in Jilin City, in view of the relatively weak medical treatment force, a national medical team was also dispatched, a severe medical team was dispatched from Heilongjiang, three general medical teams were dispatched from Henan, Inner Mongolia and Jiangxi, and ambulances were dispatched from Liaoning to support the case transfer work in Jilin City.

The medical teams dispatched by the State have taken over the severe and related wards of designated hospitals for the treatment of severe and critically ill patients, as well as patients with high risk factors. On the one hand, national experts make early shifts and early rounds in designated hospitals every morning, timely discover changes in patients' conditions, and take targeted treatment measures; on the other hand, they take roving guidance methods in square cabin hospitals and other designated hospitals to timely discover patients who have turned heavy or have high-risk factors, and transfer patients to designated hospitals with strong treatment forces in a timely manner. Judging from the current situation, the medical treatment effect in Jilin Province is still good.

Antigen testing

Antigen testing is an important complement to nucleic acid testing

Last week, the comprehensive group of the joint prevention and control mechanism of the State Council issued the "Application Plan for the Detection of Antigens of the New Coronavirus (Trial)", which regards antigen detection as an important means of screening and also as an important supplement to nucleic acid detection, giving full play to the two advantages of antigen detection "early" and "fast", screening potential infected people in the first time, using the shortest time to control the source of infection, supplemented by large-scale nucleic acid screening to improve the ability of early detection.

What is the difference between antigen testing and nucleic acid testing?

Antigen detection is characterized by rapid, simple, to use a popular analogy, colloidal gold test strip method, is the usual method of pregnancy experiments. If this person is infected with the new crown virus, the virus content in the pharynx has a process from less to more, if the amount reaches 1 million or even 10 million per milliliter, most of them can be made by antigen detection. Antigen testing is not a substitute for nucleic acid testing. Nucleic acid testing is 100 to 1000 times more sensitive than antigen detection. When the antigen test is positive, be sure to confirm with a nucleic acid test. However, the nucleic acid test is positive, and regardless of the antigen test result, the person being tested must take measures as a new crown virus infection or a confirmed patient.

Who is suitable for antigen testing?

The first category is those who go to primary medical institutions for treatment, accompanied by respiratory tract, fever and other symptoms and have symptoms within 5 days. Nucleic acid testing is negative can be at home, and then continuous testing for antigen for 5 days. Why 5 days of continuous testing? If you are a truly COVID-19 infected person, there will always be a high viral content in these 5 days, and if it is persistently negative, no intervention is required.

The second category is those who are isolated for observation, including those who are under home isolation and observation, those who have entered the country under quarantine and observation, and those who do not leave their homes when there is a sporadic epidemic situation, sub-close contact, and closed and closed communities. During the antigen test, it is tested for 5 consecutive days, 1 test per day, if it is positive, it may be tested, if it is negative, no intervention is required until the last nucleic acid test when the isolation is lifted.

The third category is those who wish to do their own testing. If the test is positive, the first time to do nucleic acid testing; negative can be tested at home when necessary antigen, if there are obvious clinical symptoms, to the fever clinic for treatment. Fever and loss of taste and smell are very specific symptoms of COVID-19 infection.

The general population should not do antigen testing at will

The sensitivity of antigen detection reagents that have been approved in our country is between 75% and 98%, and the specificity is between 95% and 99%. Because our epidemic prevention and control measures are relatively good, the prevalence rate of the population in most parts of our country is less than one in a million, if you take the kit with a sensitivity of 85% and a specificity of 97%, and screen in the city of tens of millions of people, you will get 300,000 positives, but only 9 of the 300,000 positives are true, that is to say, most of them are false positives, of course, the results of negative tests are reliable. If you use an 85% sensitive and 97% specific kit in a population with a prevalence of 5%, about 60 of the 100 positives are true, and no more than 1% of the tests are missed. Therefore, antigen testing should be used in high-risk, high-prevalence cluster infection population testing, and the general population should not do antigen testing at will.

What are the channels for the public to purchase antigen detection reagents?

First, antigen testing can be carried out at the nearest primary medical and health institution. Second, it can be purchased in retail pharmacies, and antigen detection reagents can also be purchased through online channels.

What should residents do after they have a positive antigen test at home?

Residents self-test antigen at home, if positive to report to the jurisdiction of the community, the community notified the emergency center to call 120 special ambulance vehicles, the antigen test positive patient closed-loop transfer to a medical institution with nucleic acid test conditions and then nucleic acid testing, if the nucleic acid test is positive, and then enter the process of infection management.

Prompt residents who do home antigen testing, if the antigen test is positive, all used swabs, test tubes, and test cards must be packed in sealed plastic bags, and this must be taken away to the medical institution when the staff comes to the door, and the medical waste is treated according to the medical waste.

Vaccinations

What is the current progress of COVID-19 vaccination in mainland China?

As of March 14, 2022, 31 provinces (autonomous regions and municipalities directly under the Central Government) and the Xinjiang Production and Construction Corps have reported a cumulative total of 3,198,272,000 doses of COVID-19 vaccines, with a total of 1,272,537,000 vaccinations and 1,239,171,000 people who have completed the full vaccination. Among them, the number of people over 60 years old who are vaccinated against the new crown virus reached 220 million people, and the completed vaccination was 211.62 million people.

What is the difference between sequential booster immunization and regular vaccine booster immunization?

Sequential immunization is the use of different technical routes of vaccines or different types of vaccines to complete the vaccination. Ordinary vaccines strengthen immunization, in fact, in the past, most of the time the same type of vaccine was used to complete the entire procedure of vaccination, also known as homologous vaccination. Over time, the protective effect of vaccines declines, especially the phenomenon of immune escape from viral mutations. In this context, from the perspective of international consensus, immunity is further improved by increasing the number of vaccination doses or by carrying out immunization enhancement. The current strategy for strengthening immunization on the mainland is either homologous or sequential immunization. It is imperative that the eligible population, those who have not been vaccinated, should be vaccinated as soon as possible; those who have not been vaccinated in the whole process should be supplemented as soon as possible; and those who have not been injected at the specified time interval should be upgraded as soon as possible.

The elderly, especially the elderly, should be vaccinated in time

The elderly, especially those with underlying medical conditions, are at high risk for COVID-19 and are at very high risk of severe illness. According to current statistics, about 65% of the seriously ill patients are over the age of 60. 80% of these severely ill older people over the age of 60 have underlying medical conditions. Among older adults classified as severe, 65% are not vaccinated. This is also why the state advocates that the elderly, especially the elderly, should be vaccinated in time, which is what we have observed clinically.

Since the end of last year, the epidemic of the Aumechjong variant has brought greater harm to the elderly, the elderly who have not been vaccinated or the elderly who have not been fully vaccinated, in some countries and some regions abroad, the number of deaths and severe diseases has exceeded the highest level in history, so the new crown pneumonia cannot be treated as ordinary influenza in this situation. The elderly need to be vaccinated throughout the process, and it is also necessary to strengthen the needle.

Source: Chinese government website

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