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The cases in Anyang, Henan and Tianjin belong to the same chain of transmission, both of which are Omi Kerong

The National Health Commission reported on the 10th that at 0-24:00 on January 9, 31 provinces (autonomous regions and municipalities directly under the Central Government) and the Xinjiang Production and Construction Corps reported 157 new confirmed cases, of which 97 cases were local cases (60 cases in Henan, including 24 cases in Zhengzhou City, 21 cases in Xuchang City, and 15 cases in Anyang City; 21 cases in Tianjin, all in Jinnan District; 15 cases in Shaanxi, all in Xi'an City; 1 case in Guangdong, in Shenzhen City).

According to Anyang Daily, the circulation survey shows that the anyang case in Henan and the local epidemic in Tianjin belong to the same chain of transmission, and both are Omicron.

On January 8, 2022, Anyang City found 2 cases of positive nucleic acid of the new coronavirus in the active test population. On January 9, the whole genome of the virus was sequenced by the laboratory of the Henan Provincial Center for Disease Control and Prevention, showing that the two local cases infected with the virus were all BA.1 branches of the Aomi Kerong variant, and after analysis and comparison, they belonged to the same transmission chain as the existing local epidemic situation in Jinnan District, Tianjin. Combined with the results of epidemiological investigation and gene sequencing, the source of infection of this epidemic in Anyang City was basically identified as a college student who returned to Tangyin County of Anyang City from Jinnan District of Tianjin City on December 28, 2021.

The cases in Anyang, Henan and Tianjin belong to the same chain of transmission, both of which are Omi Kerong

On the evening of January 8, residents of Huaxian County, Anyang County, Henan Province, lined up for nucleic acid testing. Image source: Visual China

As of 12:00 on January 9, Henan Province has reported a total of 258 locally confirmed cases, including 82 cases in Zhengzhou City, 10 cases in Luoyang City, 16 cases in Anyang City, 143 cases in Xuchang City, 2 cases in Shangqiu City, 2 cases in Xinyang City (all in Gushi County), and 3 cases in Zhoukou City.

In addition, Anyang City announced yesterday that from January 10, Yuan Liu Village, Liucun Township, Neihuang County, will be designated as medium-risk areas, and Yucai Middle School in Tangyin County and Dazhuzhuang Village in Guxian Town will be designated as high-risk areas. So far, Henan Province has designated a total of 12 high-risk areas and 8 medium-risk areas.

According to the news of "Healthy Tianjin", at 0-24:00 on January 9, 2022, there were 21 new confirmed cases of local new coronary pneumonia in Tianjin, all in Jinnan District. Two new cases of homegrown asymptomatic infection were added. At present, a total of 21,007 close contacts have been investigated and traced, and 2831 people are still under medical observation.

Tianjin is the first city in China to report the detection of imported cases from outside Omi kerong. On December 13, 2021, the Tianjin Municipal Center for Disease Control and Prevention conducted whole genome sequencing and sequence analysis of the respiratory specimens of asymptomatic infected persons with the new coronavirus imported from outside the city on December 9, and after review by the Chinese Center for Disease Control and Prevention, confirmed the detection of the Omiljunn variant of the new coronavirus (B.1.1.529 evolutionary branch). Since then, imported cases of Aomi Kerong have been found in Guangzhou, Changsha, Shenzhen and other places, except for Guangzhou, which have not caused indigenous infections.

The cases in Anyang, Henan and Tianjin belong to the same chain of transmission, both of which are Omi Kerong

On January 9, Zhang Ying introduced the epidemic prevention and control situation at a press conference

Zhang Ying, deputy director of the Tianjin Municipal Center for Disease Control and Prevention, revealed at a press conference that the current round of epidemic in Tianjin has shown the characteristics of fast transmission speed, strong concealment and strong penetration. In terms of the relationship between cases and the chain of transmission, the virus has been transmitted for at least three generations.

Where the epidemic in Tianjin came from is uncertain. In this regard, Jiang Qingwu, a professor at the School of Public Health of Fudan University, analyzed that the new crown virus always has a certain transmission path. On the one hand, it depends on whether it is caused by overseas import associations, on the other hand, the recent outbreak of many places in China depends on whether the virus has been brought into the virus by the flow of people. Both aspects are possible, and both should strengthen supervision and fill in the gaps.

Source: National Health Commission, Henan Health Commission, Tianjin Health Commission, Anyang Daily, Tianjin Daily

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