There are probabilities, and there are possibilities, said Banerjee. While the closest known viruses to Covid-19 have been found in bats, the 'evolutionary distance' between them is thought to be 'several decades'. HOW IMPORTANT IS IT TO UNDERSTAND THE ORIGIN? Later, the WHO was informed that at least one patient in Wuhan - a major transport hub - had been showing symptoms as early as December 8. However, the case is not completely closed.
Scientists believe that Covid-19 is the first occurence of the virus.
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Scientists believe that Covid - 19 is the first occurence of the virus .
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