Should the middle and high risk areas be isolated from Chaohu Lake?

Isolated. In order to prevent the epidemic from spreading further, the middle and high risk areas in Chaohu Lake should be isolated. Chaohu Lake, a county-level city in Hefei, Anhui Province, is located in the middle of Anhui Province, south of Jianghuai Hill, between Hefei and Wuhu, bordering hanshan county in the east, Feidong County in the northwest and Wuwei in the south.