The Shenzhen epidemic prevention and control press conference announced: Shenzhen has reported a total of 7 cases of asymptomatic infections in this round of the epidemic.
The Municipal Center for Disease Control and Prevention conducted genome sequence determination on cases 1 to 5. The results showed that the new coronavirus sequence of the same segment of the five people was highly homologous, with a homology of 99.99%. All of them belonged to the mutant strains that appeared in the United Kingdom. People belong to the same source of infection or the same chain of transmission.
The gene sequencing of case 6 and case 7 are in progress.
Based on the above circumstances, it is preliminarily determined that the epidemic is related to imported overseas.