10 days According to the official epidemic report, Hohhot has returned to Kulun Town, Kulun Banner, Tongliao City, and needs to be quarantined for 10 days. From the first day after arrival, we began to calculate and implement the "7+3" control measures (that is, 7 days of centralized isolation medical observation +3 days of home health monitoring). Nucleic acids were detected once on 1, 2, 3, 4, 7 and 10 respectively, and all of them were negative before they could flow in order. During the period of home health monitoring, do not take public transportation, have dinner, eat out, and go to crowded public places such as supermarkets and shopping malls.