National Health Commission: the general population should not be free to do antigen detection

2022-06-08 0 By

The Joint Prevention and control mechanism of The State Council held a press conference on COVID-19 prevention and control and vaccination on the afternoon of March 15.The world is currently experiencing the peak of the fourth wave of COVID-19, with weekly reports of new cases exceeding 10 million for 10 consecutive weeks.Asia is on the rise, and China’s neighboring countries and regions are setting records for the highest number of new cases in a single day, increasing the risk of the spread of the epidemic to China.Recently, there have been local clusters of epidemic cases in many places in China, mainly omicron variant strains, which spread quickly and have strong concealment.Since March, the frequency of the epidemic has increased significantly, the number of infected people has increased rapidly, and the scope of the epidemic has been expanding.From March 1 to 14, more than 15,000 local cases were reported, affecting 28 provinces.The epidemic is still developing in Jilin, Shandong, Shanghai, Guangdong and Hebei, and is rising fast in some areas.There is a high risk of social spread and spillover, and all localities are speeding up screening, evacuation and isolation of those at risk.Photo/A citizen of Jilin City, Jilin Province, takes a nucleic acid test on March 15.In general, local clusters of epidemic cases are characterized by many spots, wide areas and frequent occurrence. China’s epidemic prevention and control situation is grim and complex, making epidemic prevention and control more difficult.The epidemic is still under control.Under the Joint prevention and control Mechanism of The State Council, working teams have been sent to Jilin, Guangdong, Shandong, Hebei, Yunnan and Heilongjiang.In the face of omicron variant strain, vaccination and personal protection are the most important prevention and control measures.In particular, the elderly should be well protected and vaccinated as soon as possible. Those who are not fully vaccinated should be revaccinated as soon as possible.65% of the severely ill are over 60 years old and 65% of them are unvaccinated and according to current statistics, about 65% of the severely ill are over 60 years old.Eighty percent of those over 60 years of age who develop severe disease have underlying conditions.Among the elderly with severe type, 65 percent were not vaccinated.This is why the state advocates that the elderly, especially the elderly, should be timely vaccinated, which is clinically observed.For the elderly, Chinese medical experts have also explored a very important experience through the practice of the past two years, which is the “pass forward”, setting up the “sub-ICU” ward for the elderly with high-risk factors, and treating them in the “sub-ICU” ward when they are not admitted to the intensive care unit.This ward has better oxygen supply, monitoring conditions and medical staff than ordinary wards, while it does not have as many rescue equipment as intensive care units.In the “sub-ICU” ward, the ratio of medical staff is higher than that of the ordinary ward. The emphasis is on strengthening the monitoring of the changes in the condition of the elderly, especially the changes in blood oxygen saturation, and the patients will be transferred to THE ICU treatment in time once the trend of worsening condition is found.The purpose of the “sub-ICU” ward is to block the progression of their disease in the “sub-ICU” ward, so that they no longer need to be admitted to the ICU ward for treatment.Antigen testing is mainly applied to three groups of people Li Jinming, deputy director of the Clinical Laboratory Center of the National Health Commission, introduced that antigen testing is mainly applied to three groups of people.One is to primary medical institutions to see a doctor, such as clinical symptoms, fever, determine this symptom within 5 days of the personnel.Nucleic acid test is negative can stay at home, and then tested for antigen for 5 days.Why test for 5 days in a row?If a person is truly infected with COVID-19, there will always be a day of high virus content in these 5 days. If they continue to be negative, they do not need any intervention and there is no problem.The second category refers to people under quarantine observation, including those under home quarantine observation, those under quarantine observation who enter China from abroad, and those who are closely connected, sub-closely connected or confined to closed communities when epidemic outbreaks occur.The antigen test is conducted once a day for five consecutive days. If it is positive, it may be detected, but if it is negative, there is no need to intervene until the last nucleic acid test when the quarantine is released.The third group is residents who want to be tested themselves.If the measure is positive, the first time to do the nucleic acid detection, negative can when necessary to measure the antigen in the home, if you have obvious clinical symptoms to fever clinics, especially fever, loss of taste, smell must to fever clinics, taste, smell loss is a symptom of new crown infection is very specific.Antigen detection can not replace nucleic acid detection general population do not do Li Jinming introduction, antigen detection and nucleic acid detection specificity is not the same.Well done antigen tests can be 99 percent specific, but nucleic acid tests have 100 percent methodological specificity, which means nucleic acid tests have no false positives.Nucleic acid testing has been the “gold standard” for determining COVID-19 infection.Antigen testing cannot replace nucleic acid testing.He further explained that antigen tests approved by the state have a sensitivity of 75 to 98 percent and a specificity of 95 to 99 percent.Li jinming gives an example:”Because China’s disease prevention and control measures is better, in most of the prevalence of less than one over one million of the population, if take sensitivity 85%, specificity 97% kit, screening, to the city of tens of millions of people do get 300000 positive, but it just nine in 300000 positive is true, that is for the most part is false positives,Of course a negative test is reliable.”So antigen testing should be used in high-risk, high-prevalence clusters of infections.The general population should not be free to do antigen testing.Source | | morning news group edition | | sundae review | | contribute aloes email | | 906180339