China to test thousands of Wuhan blood samples in Covid-19 probe

China to test thousands of Wuhan blood samples in Covid-19 probe

The store of up to 200,000 samples, including those from the closing months of 2019 were pinpointed in February this year by the World Health Organization’s panel of investigators as a possible source of key information that could help determine when and where the virus first crossed into humans.The samples are kept in the Wuhan … Read more