Should Danzhou City in Hainan Province be isolated from Huidong County?

No need. According to the epidemic prevention and control center of Danzhou City and Huidong County in Hainan Province, as of September 20, 2022, Danzhou City and Huidong County in Hainan Province are low-risk areas, which belong to normal prevention and control. Huidong County, which only needs to hold a 48-hour negative nucleic acid certificate, belongs to Huizhou City, Guangdong Province and is located in the southeast of Guangdong Province and the east of Huizhou City, on the south side of the Tropic of Cancer, with Haifeng County in the east, Zijin County in the north, Huiyang District in the west and Daya Bay and Hongwan in the South China Sea in the south.