ID card of epidemic area, but do not live in epidemic area, do I need to be isolated in other cities?

According to relevant information, it is not necessary. As long as you haven't been to the middle and high-risk areas, people who are only active in the low-risk areas (including those in the low-risk areas of cities with a small number of middle and high-risk areas), as long as the health code is green, they must carry a 48-hour negative nucleic acid test certificate when going to other places.