Coronavirus: China tests thousands to calculate true spread
The effort, called a serological survey, involves researchers taking blood samples from a representative group of people to see if they have generated antibodies to fight the virus, a sign they’ve been infected
BEIJING : When Tiger Ye caught the coronavirus in January, his mother and grandmother nursed him back to health. Later that month, both women developed fevers, but with Wuhan’s hospitals overflowing they chose instead to bear it out at home.
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