As of February 9, 2022, the three-day control belongs to close contacts and will be controlled after passing through high-risk areas, so the epidemic situation under three-day control belongs to the serious level.

Novel coronavirus, COVID-19 for short, was named as 20 19 coronavirus disease by the World Health Organization, which refers to pneumonia caused by novel coronavirus infection in 20 19. Since 20 19, 12 and 1, many cases of unexplained pneumonia with a history of exposure to seafood market in South China have been found in some hospitals in Wuhan, Hubei Province, and were diagnosed as acute respiratory infectious diseases caused by novel coronavirus infection in 20 19.