(Fighting against New Coronary Pneumonia) Guangzhou's new positive case is a Delta mutant strain and an overseas imported case belongs to the same transmission chain
China News Service, Guangzhou, December 4 (Reporter Wang Hua) The Guangzhou Municipal Health Commission notified on the afternoon of the 4th that a worker in a centralized quarantine site for immigrants in Baiyun District, Guangzhou City tested positive for the new coronavirus nucleic acid.
According to the genetic sequencing results of the laboratory of the Guangzhou Centers for Disease Control and Prevention, the new crown virus infected by the case belongs to the Delta mutant strain, which belongs to the same transmission chain as an imported case abroad.
The case has been transported in a closed loop to the Eighth Hospital Affiliated to Guangzhou Medical University for isolation and treatment. He is currently in a stable condition.
From December 4, 2021, the Wenxing Hotel on Junhe Street in Baiyun District will be adjusted to a medium-risk area.
The case is a 50-year-old male who is a worker in a centralized quarantine site for immigrants in Baiyun District, Guangzhou.
The gene sequencing results showed that the new coronavirus infected by the case Xie was a Delta mutant strain, and shared 36 mutation sites with the nucleic acid sequence of an imported case from the hotel before, indicating that the two belonged to the same chain of transmission.
As of 12 o'clock on December 4, 91 close contacts have been investigated, and control measures have been implemented for 168 close contacts, and all nucleic acid test results have been negative.
At the same time, Baiyun District has delineated 3 closed areas, 3 controlled areas, and 2 guarded areas. According to relevant requirements for prevention and control, control and environmental elimination have been implemented.
According to Wang Xiaojie, deputy head of Baiyun District, Guangzhou, large-scale population nucleic acid screening is underway.
As of 12 o'clock on December 4, it took 15 hours to complete sampling of 123,992 samples, of which 79,341 results were negative, and the remaining results are pending.
A total of 967 environmental samples were collected, of which 918 environmental samples tested negative and 1 positive sample was a sample from the toilet in the isolation place where the case worked, and the rest are to be released.
Zhang Zhoubin, deputy director of the Guangzhou Centers for Disease Control and Prevention, said that the world is still in the epidemic period of the new crown pneumonia epidemic. More than 30 countries around the world have successively reported cases of Omi Keron mutant strain infection, which also reminds people that the virus has been constantly increasing. There is a mutation.
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