it's sealed. According to the information of Huaihua, Huaihua was closed on October 8, 2122. In Hecheng District, 3 cases of confirmed cases and 5 cases of asymptomatic infection in COVID-19 were newly added, of which 3 cases were found in the centralized isolation personnel and 5 cases were found by screening in the control area. All of them have been transported to designated hospitals in a closed loop. The only thing is to make nucleic acid.