Legal basis: Article 5 of the novel coronavirus Prevention and Control Plan (Eighth Edition) improves the epidemic prevention and control system in communities (villages), establishes a "five-package one" community prevention and control responsibility system for street (township) cadres, grid workers, grassroots medical workers, police and volunteers, and compacts the "four-party responsibility". Implement grid management measures such as health education, environmental improvement, personnel investigation, home management and caring service, and focus on strengthening the management and health monitoring of home medical observers. After the outbreak, implement community control measures, cooperate with professional departments to do a good job in personnel transfer, epidemiological investigation, environmental sampling and terminal disinfection, and do a good job in management services, living security and psychological counseling for home observers. The rural and urban-rural fringe should improve the three-level guarantee mechanism of counties and villages, strengthen the registration and health monitoring of holiday returnees, and implement various control measures.