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China to test Wuhan residents' blood samples for virus clues
In a report, an international team of investigators from the World Health Organization who visited the central Chinese city in January and February has called for looking into whether blood bank samples collected during the initial period of the outbreak contain antibodies to the virus.
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People walk along a pedestrian street in Wuhan, China's central Hubei province on January 23, 2021, one year after the city went into lockdown to curb the spread of the Covid-19 coronavirus. (Agence France-Presse/Hectar Retamal)
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hina is preparing to test tens of thousands of blood samples collected from Wuhan residents as part of efforts to look into the origins of the pandemic-causing coronavirus, CNN reported Wednesday Beijing time, citing a Chinese official.
In a report, an international team of investigators from the World Health Organization who visited the central Chinese city in January and February has called for looking into whether blood bank samples collected during the initial period of the outbreak contain antibodies to the virus.
Chinese authorities first confirmed the virus in Wuhan in December 2019. It remains unknown how the virus started spreading. China has been criticized for not disclosing enough information or being sufficiently transparent as scientists have been working to understand the virus's origins.
The CNN report said up to 200,000 samples, including those from October and November 2019 when humans are likely to have first been infected with the virus, are kept at a blood center in Wuhan.
An official from the country's National Health Commission told CNN that testing would happen once a two-year storage limit expires for the relevant blood samples.
Meanwhile, the World Health Organisation on Wednesday proposed 26 experts to form its new Scientific Advisory Group for the Origins of novel pathogens, including several who served on its mission to Wuhan, China, to probe the source of the SARS-CoV-2 coronavirus.
The statement named the 26 proposed members ahead of a two-week period of public consultation, including Marion Koopmans, Thea Fischer, Hung Nguyen and Chinese animal health expert Yang Yungui, who took part in the joint investigation this year.
