Does Nanjing need to be isolated when returning to Ganyu?

yes. Ganyu District belongs to Lianyungang City, Jiangsu Province. According to the inquiry of the epidemic prevention and control center, there are 37 high-risk areas in Nanjing as of December 11, 222, and people from high-risk areas need to be isolated. Nanjing, referred to as "Ning" for short, was called Jinling and Jiankang in ancient times. It is the capital, sub-provincial city, megacity and core city of Nanjing metropolitan area.