5 cases in Chengdu infected with Omikon mutant BA.2.12.1 No yet found that it is related to other local cities in China recently

Cover Journalist Lai Fangjie Intern Dai Jianglan

On July 17, Fan Shuangfeng, director of the Emergency Office of the Chengdu Center for Disease Control and Prevention, said that as of now, the "0715" outbreak has reported 14 local cases. The epidemic presented the following characteristics:

The first is timely epidemic disposal. Except for the first case, the rest of the infected people are detected in close contact with those who are closely exposed at the same time, and they are basically early infection when they are discovered.

Second, the epidemic spreads fast. After the case is exposed, it has the ability to spread in a short period of time.

Third, the epidemic shows obvious gathering. Most of the cases have the history of contact, living, and entertainment.

Fourth, the trajectory of cases before controlling the case involves multiple shopping malls, restaurants, supermarkets, communities, and farmers' markets, such as large liquidity. Daily commuting involves cross -regional travel.

Fifth, 11 of the cases of the epidemic are relatively high, and 11 of the 14 positive infections are all confirmed cases. Most cases have symptoms such as fever, headache, runny nose, sore throat, or throat discomfort, but general symptoms are mild.

Sixth, the gene sequencing of No. 1-5 cases has been completed, and the results are displayed as OMICRON mutant plants BA.2.12.1 (that is, BG.2 evolution branch). From the perspective of gene sequence The local epidemic is related. At present, the current traceability work is in progress.

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