On May 25, Shenzhen held a news conference on the epidemic. According to Wu Hongyan, director of the Shenzhen Municipal Health Commission, since May 23, three new cases of asymptomatic infection have been discovered in Shenzhen, and a total of 7 cases of asymptomatic infection have been reported in Shenzhen.
The three newly added asymptomatic infections are all related to the operation of international freighters in Yantian Port area on May 17. Two of them were directly involved in international cruise operations, and the husband of the other was working in Yantian Port area. The circulation showed that they were operating in Yantian Port area. Personnel related.
The Shenzhen Centers for Disease Control and Prevention conducted genome sequencing of asymptomatic infections. The results showed that the sequences of the new coronaviruses in the same segment of the first five cases were highly homologous, with a homology of 99.99%, all of which belonged to the mutant strains that appeared in the United Kingdom. It can be determined that the above five people belong to the same source of infection or the same chain of transmission.
The genetic sequencing of the other two cases is in progress. Based on the above, it is preliminarily determined that this epidemic is an imported overseas related epidemic.
(Headquarters reporter Yang Zhen Chen Jiexiong)