The study ends 'any speculation about deliberate genetic engineering,' said Josie Golding, epidemics lead at the Wellcome Trust.
The features they described may explain why SARS-CoV-2 is so infectious and easily spread in humans, they said.
The backbone of SARS-CoV-2 was also different enough to other known viruses for the team to conclude that it wasn't manmade.-2 is not the product of purposeful manipulation," they wrote.-2 emerged from natural selection in either animals or humans. Bats are a potential host for the virus SARS-province.
Another theory is that the virus jumped to humans, and then its genetic make-up changed as it passed from human to human. This could have involved a period where the virus was passing in humans unnoticed. Or, like, the virus could have repeatedly jumped from a host to humans before it started spreading on its own.
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