Chengdu has completed nucleic acid testing and sampling of more than 1.1 million people, and a total of 504 close contacts have been traced.

Around 9 p.m. on December 10, Chengdu held a press conference on epidemic prevention and control. The reporter learned from the conference that, so far, Chengdu has completed more than 1.1 million nucleic acid tests and samples.

According to Xie Qiang, director of the Chengdu Municipal Health Commission, according to the Chengdu Unified Epidemic Prevention and Control Deployment, 149 teams, 2,848 sampling personnel and 33 testing institutions continue to do their best to carry out investigations, sampling, tests and inspections in relevant key areas. Elimination, control and other tasks.

As of 6:00 p.m. on the 10th, Chengdu has tracked a total of 504 close contacts and 1,262 close contacts of close contacts, all of whom have implemented isolation and observation measures. A total of 1,101,234 nucleic acid samples have been completed and 1,048,007 have been analyzed. Among them, 10 were positive, 1,047,997 negative and the rest of the results are pending. 818 environmental samples have been collected, of which 769 were negative and 14. The rest of the results are pending. Positive samples were detected in the items used by the case, the home, and the surrounding environment. A total of 140 food samples were tested and all results were negative.

At the same time, in response to a recent public concern in Chengdu that was diagnosed after nearly a month after the quarantine period, Zong Zhiyong, director of the infection management department and chief physician of the West China Hospital of Sichuan University He responded at the meeting, first, the patient’s nucleic acid test. The first time it was positive was in the UK; second, the patient’s symptoms were very mild and the patient’s symptoms started abroad, that is, when he was in the UK; third, the patient had no relevant epidemiological history after returning to the country, and the patient had none in China I have been in high school risk areas and have not been in contact with suspected patients confirmed with new coronary pneumonia, and no there is other medical history of contact and meeting, so it is considered an imported case of new coronary pneumonia. More importantly, through the genome sequencing analysis of the sample from this case, it is concluded that the virus strain and the virus branch of this patient are significantly different from the local case in Chengdu and do not belong to the same branch.

Zong Zhiyong also presented that the patient is currently being treated in isolation at a designated hospital. The Center for Disease Control and Prevention also conducted a detailed investigation of the patient’s movement path, sampled and killed the patient’s living environment, and adopted centralized isolation measures for relevant close contacts.

Editor in Charge: Song Feng