1. Strict restrictions on travel to medium- and high-risk areas and the counties in which they are located (cities and districts), non-essential not to travel to medium- and high-risk areas where the other counties of the prefecture-level city (cities and districts). 2. High-risk positions should try to avoid travel, the need to travel to meet the workplace out of more than 14 days and hold a negative nucleic acid test within 48 hours of the certificate, and in the unit to report. 3. Fever patients, health code "yellow code" and other personnel to fulfill the responsibility of personal protection, take the initiative to cooperate with the health monitoring and nucleic acid testing, in the absence of infection risk exclusion before not traveling