Why did the epidemic-free community still show positive results after being closed for a long time (the difference between the epidemic-controlled community and the closed community)

Why do positive cases still appear in epidemic-free communities after being closed for a long time? Hohhot Health Commission responded →

On November 2, 2022, the Hohhot New Coronavirus Epidemic Prevention and Control Press Conference was held. The second-level researcher of the Hohhot Municipal Health Commission asked why some epidemic-free communities were in Changsha The question of the sudden emergence of positive infections under time control was answered.

The source of infection of COVID-19 is mainly confirmed cases of COVID-19 and asymptomatic infections; the main transmission routes are through respiratory droplets and close contact; it is transmitted through aerosols in relatively closed environments. Recently, some epidemic-free communities have had positive infections after a long period of lockdown. After investigation, it was found that the infection was mainly caused by "breakdowns" among individual residents in the epidemic-free community.

While strengthening community management, we have further strengthened the closed-loop management of key groups in key industries. In accordance with the principle of "whoever is in charge is responsible and whoever is working is responsible", we require relevant units to effectively assume the responsibility for epidemic prevention and control. The main responsibility is to conduct nucleic acid + antigen tests every day. Only when the antigen test is negative on the same day can you start work, and simultaneously do health monitoring, environmental disinfection, training and education, etc. At the same time, arrange for all Bao Lian cadres, medical personnel, political and legal police, grid workers, volunteers and other staff involved in community-level epidemic prevention and control to live in closed-loop management hotels or to live in tents or color-coated steel houses at the gates of the community on duty. methods, implement full closed management, and resolutely avoid "breaking the loop".