Fengcheng should be isolated from Haining.

Don't. According to relevant data, as of September 22, 2022, fengcheng city, Yichun City, Jiangxi Province belongs to the normalized prevention and control area. Anyone who comes (returns) to Haining needs to declare 48 hours in advance, hold the green code of health code and the negative certificate of 48-hour nucleic acid test, and need to do two nucleic acid tests within 3 days without isolation. Haining is a county-level city under the jurisdiction of Zhejiang Province, which is hosted by Jiaxing City and located in the north of Zhejiang Province.