People returning from Chengdu to Shaanxi Province do not need to be isolated. Chengdu is a low-risk area, but they must hold a 48-hour negative nucleic acid test certificate, scan their health code and travel code, and they have no symptoms such as fever, cough and fatigue recently. After returning, they must report to their village and community and observe at home. If there is no change in 14 days, they can live normally.