1. The latest report on nucleic acid detection ended on June 12, and 2 1 8,620,687 nucleic acid samples were collected in the whole city that day. The results of nucleic acid test were all negative.

2. The overall tracking of the epidemic situation has been reported. From September 29th this year to June 10 and June 12 at 2 1, Hefei imported 2 1 person with asymptomatic infections from other provinces and cities, and all of them were treated in hospitals. A total of 3,643 people were followed up, 8 160 people were followed up, 3,346 potential secret contacts were investigated, and 518,577 people were exposed. Except for the reported 2 1 infected person, the nucleic acid test results were all negative.

3. Tracking the epidemic situation of "10. 12" in the high-tech zone, 493 people were fat contacts, 2483 potential contacts and 8 122 people were investigated, and the screening was expanded. The results of nucleic acid test were all negative.

4. Tracking the epidemic situation of "10.1"in the high-tech zone, investigating 598 people, 2,456 people, 65,438 people and 5,662 people exposed to the epidemic, and screening people who ensure the environment11. The results of nucleic acid test were all negative. 5. According to the epidemic tracking of "10. 1 1" in the new station area, 3 cases were asymptomatic infection and 3 cases were hospitalized. 56 people were exposed to chemical fertilizer, 83 people were exposed to secondary density/kloc-0, 49 people were screened and 98 environmental samples were collected. The results of nucleic acid test were all negative.

6. The investigation of "10. 10" epidemic situation in Feixi County included 166 people, 299 people with sub-close contacts and 374 people with potential close contacts, and 86 150 people were screened and 888 environmental samples were collected. The results of nucleic acid test were all negative.

7. Tracking the epidemic situation of "10. 10" in high-tech zone, with 26 people in dense area and 40 people in sub-dense area. The results of nucleic acid test were all negative.

8. The "10.9" epidemic situation in Yaohai District reported that 4 cases were asymptomatic infected and 4 cases were hospitalized. Fat exposure 1 0,298 people, sub-dense exposure 22 1 person, sub-dense exposure 2 people and screening 30,990 people. The results of nucleic acid test were all negative. 2608 environmental samples were collected, of which 257 1 was negative and 37 were positive.

9. Tracing the epidemic situation of "10.8" in Shushan District, investigating 144 people, 120 people, 2 potential close contacts, screening 54,734 people and collecting 968 environmental samples. The results of nucleic acid test were all negative.

10. The epidemic survey of "10.8" in Feidong County showed that there were 63 Fermi people, one sub-mi 10 1 97 people, and the results of nucleic acid detection were all negative. Environmental samples 130, 125 were negative and 5 were positive.

1 1. The epidemic situation of "10.8" in Luyang District was investigated. There were 203 cases of close contact with fat, 448 cases of second close contact, 3 cases of potential close contact, 7,720 cases of potential exposure 15, and environmental sampling/kloc. The results of nucleic acid test were all negative.

Emergency headquarters on Epidemic Prevention and Control in Hefei, 2022, 10, 12.