China News Service, Yinchuan, October 22 (Reporter Yang Di) The reporter learned at the press conference on Ningxia's response to the prevention and control of the new crown pneumonia epidemic on the 22nd that the Ningxia Center for Disease Control and Prevention had detected the first case of the epidemic in Yinchuan City, Ai Mou, Wuzhong City The specimens of 5 cases of the epidemic transmission chain, Xu, Dong, Ping, and Yinchuan epidemic Hou, were deeply sequenced, and the sequencing results were preliminary analyzed, and they all belonged to VOC/Delta mutant strains.

  As of 12:00 on the 22nd, Ningxia had reported 11 confirmed cases and 2 asymptomatic infections.

  The Ningxia Center for Disease Control and Prevention conducted in-depth sequencing of the specimens of the first case of the Yinchuan epidemic in Yinchuan City. The sequencing results showed that the virus infected by Ai was a VOC/Delta mutant strain (B.1.617.2 evolutionary branch), which was approved by China Disease Control and Prevention. The central comparison showed a high degree of homology with the viral genome sequence of a local case reported in Shaanxi Province recently.

  The Ningxia Center for Disease Control and Prevention performed in-depth sequencing of the specimens of 4 people from the Wuzhong City Epidemic Transmission Chain Cases Xu, Dong, Ping and Yinchuan Epidemic Hou Mo. A preliminary analysis of the sequencing results showed that they all belonged to VOC/Delta variant strains. (B.1.617.2 evolutionary branch), highly homologous to the viral genome sequence of the first case of the Yinchuan epidemic, Ai.

  The Delta virus that caused the epidemic has the characteristics of high viral load, short incubation period, and strong transmission.

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