China News Service, Dongguan, June 21 (Li Yingmin and Li Chun) Dongguan City, Guangdong Province held the third press conference on the prevention and control of the new crown pneumonia epidemic on June 21. Zhang Qiaoli, deputy director and spokesperson of the Dongguan Municipal Health Bureau, reported on the 20th The source of infection of the announced confirmed case Jia XX.
Zhang Qiaoli said that in the early morning of the 21st, the Guangdong Provincial Center for Disease Control and Prevention conducted a whole genome sequence of the new coronavirus infected by Jia, and Jia’s gene coverage was 99.13%. It was confirmed with Li and her husband Xiao in Dongguan. The mutation sites are the same, sharing 32 mutation sites. From the perspective of molecular biology, it further proves that Jia Moumou's source of infection is Li Moumou and her husband Xiao Moumou.
On June 18, Dongguan Nancheng Street reported that Li Mouting was diagnosed with new coronary pneumonia.
Immediately, from June 18th to 19th, Dongguan carried out the first round of all-staff nucleic acid screening on Guancheng Street, Dongcheng Street, Wanjiang Street, Nancheng Street, and Machong Town, and a total of about 2 million people were sampled.
Except for the positive test result of Jia XX, a student from the Dongguan campus of Guangzhou Xinhua University announced on the evening of the 20th, the rest were all negative.
This time, Jia Moumou was not only the object of large-scale nucleic acid screening, but also included in the selection range of Li Mouting's close contacts notified by Dongguan City, and was selected in the double screening.
After screening Jia XX as a positive case, Dongguan immediately organized Mayong Town to carry out the second round of nucleic acid testing.
As of 10 a.m. on June 21, the town had sampled a total of 220,000 people. The first batch of 160,000 people had issued test results, all of which were negative.
From June 19th to 20th, Dongguan also carried out nucleic acid screening for all employees in Dalingshan Town, Chang'an Town, and Humen Town. A total of 2,334,790 people were sampled, and the test results were all negative.
In view of the current situation of the epidemic situation in Dongguan, starting from the morning of June 21, except for Dalingshan, Chang'an, Humen and Machong, Dongguan will start nucleic acid testing for all employees in the city.
At present, the nucleic acid screening of all employees is still in progress and is expected to be completed at 12:00 tonight.
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