The World Health Organization found signs that the coronavirus appeared in the Chinese population earlier than the Chinese government claimed.
Peter Ben Embarek, WHO’s lead investigator for COVID-19, told CNN that his group has been able to sequence 13 different strains of the coronavirus that were circulating in Wuhan in December 2019. The large number of strains present in Wuhan at the time means that “it is likely that the virus was circulating for a while longer than that month alone,” virologist Edward Holmes of the University of Sydney, Australia, told CNN.
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