In here again,...cough cough....
Latest test results: a large number of new coronaviruses exist in Wuhan South China seafood market
The reporter learned today from the China Centers for Disease Control and Prevention that since the outbreak of a new coronavirus, the virus disease center of the center has continued to attack and made progress in the study of virus traceability. For the first time, 585 environmental samples from the South China Seafood Market detected 33 samples containing novel coronavirus nucleic acids and successfully isolated the virus from positive environmental specimens, suggesting that the virus originated from wild animals sold in the South China Seafood Market.
Most of the early confirmed cases of Wuhan’s new coronavirus epidemic came from Wuhan South China Seafood Market. On December 31, 2019, according to the requirements of the China Centers for Disease Control and Prevention, the selected expert group went to Wuhan to participate in the epidemic prevention and control, and in the early morning of January 1, 2020, drafted the ‘Environment Traceability Work Plan’. At 8 am on January 1st, I went to South China Seafood City to collect 515 environmental samples from case-related merchants and related neighborhoods, and transported them to the virus disease laboratory for testing. On January 12, experts from the Institute of Viral Diseases again collected 70 specimens of wild animal vendors in the South China Seafood Market and transferred them to the laboratory for testing.
A total of 585 samples were collected from two batches of South China Seafood City. PCR tests showed that 33 samples were positive for the new coronavirus nucleic acid. These positive samples were distributed in 22 stalls and 1 garbage truck on the market, of which 93.9% (31/33) positive specimens were distributed in the western part of the South China Seafood Market. The investigation found that the South China Seafood Market was nominally a seafood market, but was actually a comprehensive market. There is a wildlife trade in the western part of the South China Seafood Market, especially in the areas near the 7th and 8th streets in the west, there are many wildlife dealers, and the positive samples in this area are also concentrated, accounting for 42.4% of all positive samples (14 / 33). In summary, it is highly suspected that the outbreak is related to the wildlife trade.
Coronavirus-sensitive cell lines used for viral disease-positive samples have been isolated for viral-positive samples. Electron microscopy, PCR, and in-depth sequencing results have shown that a new type of coronavirus has been successfully isolated from environmental samples, further confirming the seafood in South China There are a large number of new coronaviruses 2019-nCoV in urban environments.
http://news.china.com.cn/2020-01/26/...t_75650711.htm