China News Service, May 1 (Xu Jing) Pang Xinghuo, deputy director of the Beijing Center for Disease Control and Prevention and a member of the national new coronavirus pneumonia expert group, said at a press conference on Beijing's epidemic prevention and control work on May 1 that Beijing The CDC conducted whole genome sequencing on the samples of 51 newly infected persons, including 303, 323, and 342, and the results showed that the viruses belonged to Omicron variant strains, and they were all highly homologous to the virus sequences of the clustered epidemics in Chaoyang District. .
At present, Beijing has completed the sequencing of 158 local infected specimens since April 22. The sequence comparison results suggest that there are two independent transmission chains in the city, both of which are related to the recent clustered epidemic outside Beijing and its spillover to other provinces and cities. The virus sequences are completely identical.