The Shanghai epidemic has led to an increase in immigrants.

There are no asymptomatic infected people under medical observation in Shanghai. 1 1 immigrant nucleic acid was positive, but there were no obvious symptoms at that time. 120 people were sent to the designated fever clinic for isolation, investigation and treatment. After reexamination, 1 case was excluded, and the remaining 10 cases showed clinical manifestations one after another. According to the results of laboratory examination and imaging examination, it is diagnosed as a confirmed case, and centralized isolation, investigation and treatment are carried out in strict accordance with the control measures of confirmed cases.

We should use 120 special ambulance to transfer to the designated fever clinic for isolation, investigation and treatment. After the diagnosis, immediately sent to the designated medical institutions for centralized isolation treatment; According to the national diagnosis and treatment planning and the knowledge of experts in this city, antiviral treatment was carried out. Strict emission standards. Asymptomatic infected patients must meet the discharge criteria for confirmed cases, that is, two consecutive nucleic acid tests are negative. Strengthen follow-up management. Isolation management and health monitoring were carried out on/0/4 days after discharge, and follow-up was carried out in designated hospitals in the second and fourth weeks after discharge.

Strengthen screening, continue to track asymptomatic infected persons and close contacts, strengthen 100% nucleic acid detection of all entry personnel in Shanghai and sampling screening of high-risk personnel, and strengthen monitoring of key populations and key places. In the near future, the asymptomatic infection rate of COVID-19 infected people will gradually increase. Especially after the main epidemic strains are exposed, the asymptomatic infection rate can reach 80%-90%. The proportion of asymptomatic infection in Shanghai is similar to that in other countries and regions.

There were 34,534 new cases of local infection in China, of which the total number of asymptomatic infections exceeded 20,000, accounting for 63.4% of the total number of new local infections. The Omicron variant itself is relatively mild. After vaccination, the proportion of mild symptoms will be high, even making him asymptomatic. It is precisely because of a series of effective prevention and control measures that people are not infected.