Editor : Yu Xiao
Publisher : China News Network
Translation, editing : Gan Yung Chyan
/ KUCINTA SETIA
According to the website of the China CDC, on 26 June 2020, the Chinese National Center for Disease Prevention and Control announced "Progress of Beijing's novel coronavirus pneumonia (covid) in June." Among them, the virus source analysis section pointed out that it is possible to exclude the infection of humans by animal virus spillage, and also to rule out the local epidemic strains in Beijing or the epidemic strains in Wuhan before April this year.
On June 11, Xicheng District of Beijing found a confirmed case with no history of out of Beijing and close contact with outsiders in the past 2 weeks, ending the epidemic situation of no local infection in Beijing for 56 consecutive days. The China CDC stated that genetic analysis of three strains of virus from a 53-year-old male case and a 25-year-old male case and specimens collected from the Beijing Xinfadi wholesale market environment showed that the SARS-CoV-2 circulating in Beijing was L Genotype European family branch Ⅰ, this strain is “older” than the current European homologous strains; it can exclude the spread of animal virus spillovers, and also exclude the local transmission of strains in Beijing or Wuhan epidemic strains before April this year. The infection mode of the epidemic situation in the wholesale market of the new place is presumed to be mainly direct contact between people and/or indirect contact through surface contamination.
After the outbreak, professional institutions quickly confirmed that the main source of infection in this outbreak was the new wholesale market, and governments at all levels in Beijing quickly took strong prevention and control measures. It has been 11 days since the Xinfadi wholesale market was closed on 13 June and is close to the longest incubation period of covid. The risk of related exposures is getting lower and lower, and its close contacts are also under effective management. Hence, it is expected the relevant epidemic situation of the Xinfadi wholesale market has been basically controlled.
Although a number of cases that have no connection with the Xinfadi wholesale market and the source of the infection are yet to be further investigated have recently been found, it is suggested follow-up prevention and control may have certain complexity. However, the results of large-scale population testing in Beijing suggest that it has nothing to do with the Xinfadi wholesale market. The infection rate of the population is extremely low. Under the prevention and control measures that Beijing has strengthened surveillance and strongly expanded social distance, the risk of further spread of the epidemic is low. The Beijing epidemic is expected to be brought under control recently.
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