Since March, more than 220,000 new cases of indigenous infections have been added, experts: sort out the chain of transmission, cut off the chain of transmission!

People's Daily health client reporter Zhao Weide

According to the statistics released by the National Health Commission, since March 1, as of April 7, there have been more than 220,000 new cases of infection in the country (including asymptomatic confirmed cases). Among them, the fastest growth in the past 6 days, the cumulative increase in the past 6 days has exceeded 110,000 cases, and the number of new cases in a single day has exceeded 10,000.

The reporter's statistics also found that since March 1, among the new cases in the local area, there has been an interval of 10 days from 10,000 to 50,000 cases of infection, 8 days between 50,000 cases and 100,000 cases of infection, only 4 days between 100,000 cases and 150,000 cases of infection, and only 2 days between 150,000 and 200,000 cases of infection, and the epidemic growth rate is obvious.

Wu Zunyou, chief expert of the Chinese Center for Disease Control and Prevention, introduced at the press conference of the joint prevention and control mechanism of the State Council that in view of the recent increase in asymptomatic infected people, the following measures have been taken: First, through big data, we have assisted epidemiological investigations to sort out the transmission chain, traced close contacts, and found asymptomatic infected people on the transmission chain. Second, the surveillance line will be moved forward one step further, and through the monitoring mode of "antigen screening + nucleic acid diagnosis", asymptomatic infected people will be found as soon as possible and the chain of transmission will be cut off.

The growth trend of the epidemic since March. Copywriter/Zhao Weide Cartographer/Wang Tongtong

The number of new infections in the home area has been reported daily since March. Copywriter/Zhao Weide Cartographer/Wang Tongtong

On March 13, the cumulative number of infected people exceeded 10,000 cases for the first time

According to the above data statistics, the reporter found that the cumulative number of infected people exceeded 10,000 cases for the first time on March 13, which was 11,098 cases (including asymptomatic confirmation). Among them, the four days of the 10th, 11th, 12th and 13th grew rapidly, and the number of new cases in a single day exceeded 1,000.

On March 23, the cumulative number of infections exceeded 50,000

On March 23, the cumulative number of infections exceeded 50,000, reaching 52,165 (including asymptomatic confirmed diagnosis). Among them, the six days of the 14th, 17th, 20th, 21st, 22nd and 23rd grew rapidly, and the number of new cases in a single day exceeded 4,000.

On March 31, the cumulative number of infections exceeded 100,000

On March 31, the cumulative number of infections exceeded 100,000, which was 105544 cases (including asymptomatic confirmation). Among them, the growth of the 29th and 30th accelerated, and the number of new cases in a single day exceeded 8,000.

On April 4, the cumulative number of infections exceeded 150,000

The cumulative number of infections exceeded 150,000 on April 4, which was 158114 cases (including asymptomatic confirmed cases), of which April 2, April 3 and April 4 increased rapidly, with more than 10,000 new cases in a single day for three consecutive days.

On April 6, the cumulative number of infections exceeded 200,000

The cumulative number of infections exceeded 200,000 on April 6, which was 201581 cases (including asymptomatic confirmed cases), of which April 5 and April 6 increased rapidly, with two consecutive days of new cases exceeding 20,000.

Experts recommend moving forward to monitor the defense line and doing a good job of classification management

On March 15, the joint prevention and control mechanism of the State Council held a press conference to introduce that since March, the frequency of the epidemic has increased significantly, the number of infected people has grown rapidly, and the scope of the impact has been expanding. On March 11, the Comprehensive Group of the Joint Prevention and Control Mechanism of the State Council in Response to the Novel Coronavirus Pneumonia Epidemic decided to add antigen detection as a supplement to nucleic acid testing, and organized the formulation of the "Application Plan for New Coronavirus Antigen Detection (Trial)" to detect the ability to detect early.

On March 25, the joint prevention and control mechanism of the State Council held a press conference, and Wang Guiqiang, director of the Department of Infectious Diseases of the First Hospital of Peking University, pointed out that adjustments have been made to the characteristics of Aomi Kerong, emphasizing the concept of "pass forward", one is early detection, early reporting, early isolation, and early treatment, the second is the classification management of mild and severe cases, and the third is the treatment of antiviral drugs into the diagnosis and treatment plan to cope with the new development situation of the current epidemic.

Tan Xiaodong, professor of epidemiology at the School of Public Health of Wuhan University, pointed out to reporters that the current epidemic situation in the country, especially in Shanghai, is still in a high-level operating state, and the number of asymptomatic infected people continues to increase, which brings difficulties to early screening, and it is necessary to adhere to the "nucleic acid + antigen" test, with nucleic acid detection as the mainstay and antigen detection as the supplement, to improve early detection, early reporting, early diagnosis, and early isolation capabilities.

According to the Shanghai Health Commission on April 7, as of now, there are more than 100,000 asymptomatic infected people in Shanghai.

In view of the next step of epidemic prevention and control, Professor Tan Xiaodong said that all localities should make preparations for prevention, explore epidemic prevention and control measures in line with local reality, and learn from the good epidemic prevention experience of other provinces and cities, such as classified management of mild and severe diseases, fang cabin hospitals mainly accept mild and asymptomatic infected people, and serious patients are concentrated in special isolation points for treatment.

Chen Erzhen, head of the medical treatment team of the Shanghai centralized isolation point, said in an interview with Dajiangdong Studio that according to the current development of the situation, if the number of asymptomatic infected people is too large, they can implement home isolation if they have the conditions.

In this regard, Tan Xiaodong said, "Home isolation should have certain prerequisites, such as respiratory exhalation and disinfection of domestic wastewater, first of all, consider whether it is possible to cause infection to the living environment of other people around; secondly, it is necessary to do a good job of health testing, and the relevant medical units can timely know the health status of infected people and intervene according to changes in the situation." ”

Tan Xiaodong also suggested that as far as the public is concerned, it is still necessary to adhere to the protection, although the symptoms of Omicron are mild, but for the elderly group with underlying diseases, it is more harmful, and it is still necessary to attach great importance to it ideologically.