Covid: New WHO group may be last chance to find virus origins

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Almost two years since the start of the pandemic, we still don’t know where , when or how the deadly Sars-Cov-2 virus emerged. Investigating new viruses is always extremely complex, but scientists have been able to find the source of the two previous coronavirus outbreaks – both of which have emerged from animals.

Credit: www.bbc.co.uk

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