New Year's Eve people returning from epidemic areas: Whether to isolate depends on whether the urban areas they have visited are medium-high risk areas, some are centralized isolation 14 days, and some are centralized isolation for 7 days+home isolation for 7 days.

1. In principle, people who are classified as middle and high risk areas should not walk around at will. If you must leave, you should need a negative nucleic acid certificate, especially in a city where the epidemic situation is already very serious. It is possible that all people who leave the city, including those in low-risk areas, need a negative nucleic acid certificate.

2. Generally, you don't need isolation when you leave a place, but you usually need isolation when you enter a city. No matter which city you arrive in, people from high-risk areas or middle-risk areas are generally required to be quarantined or health managed. Detailed isolation requirements vary from city to city.

3. If you haven't been to the middle and high risk area, but only people who are active in the low risk area, you only need to take the green code to travel abroad, but the specific requirements of different cities will be different. For example, in Beijing, people from low-risk areas will be required to be negative for 48 hours except for the green code. Shanghai requires all people who come to Shanghai, even those in low-risk areas, to undergo health management for seven days.