What are the key areas for epidemic prevention and control?

At present, there are 44 key epidemic control areas in China: Changyi District, Jilin City, Jilin Province; Dalian, Liaoning Province; Tongxiang City, Jiaxing City, Zhejiang Province; Kangmei Street in Liangjiang New District of Chongqing, Shuangbei Street in Shapingba District, Long Ta Street in Yubei District, Baoshenghu Street, Longxi Street, Bodhi Street in Changshou District and Yudong Street in Banan District; Tianning District and Wujin District, Changzhou City, Jiangsu Province; Fugou County, Zhoukou City, Henan Province; xinmi city, Jinshui District, Zhengzhou City; Xingyang City; Guangxin District, Guangfeng District, Xinzhou District and Yanshan County, Shangrao City, Jiangxi Province; Pingfang District, Harbin City, Heilongjiang Province, Aihui District, Heihe City; Chengdu High-tech Zone, Dujiangyan City, East New District, Xindu District, Pidu District, Jinjiang District, chenghua district and jinniu district; Xisanqi Street, Haidian District, Beijing, Liucun Town, Changping District, Tiantongyuan North Street and Beiqijia Town; Chengbei District, Chengdong District and Chengxi District of Xining City, Qinghai Province; Jinzhou City, xinji city City and Shenze County, Shijiazhuang City; Qinzhou District and Maiji District, Tianshui City, Gansu Province; Xingqing district and jinfeng district, Yinchuan City, Ningxia Hui Autonomous Region. People who come to (return to) Liaoyang in the above areas must report to their communities (villages), all of whom are subject to centralized isolation medical observation, and complete the first nucleic acid detection within 24 hours. The isolation period is 14 days after coming to (returning to) Liaoyang, during which nucleic acid detection is carried out twice. 10 since 14 years 10 month, all the people who came (returned) to Liaoyang, Dalian have been tested 1 time, and their health has been carefully monitored.