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Comment by Ke-Jia Shan

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Researcher and lead author of a study on mutation spectra and the natural origin of SARS-CoV-2
Consequently, similarities between the mutation spectra of SARS-CoV-2 and the bat coronavirus RaTG13, which have accumulated since their divergence strongly suggest that SARS-CoV-2 evolved in a host cellular environment highly similar to that of bats before its zoonotic transfer into humans. Collectively, our findings provide data-driven support for the natural origin of SARS-CoV-2.
Unverified (Sep 28, 2021)
Source:
Ke-Jia Shan et al., "Host-specific asymmetric accumulation of mutation types reveals that the origin of SARS-CoV-2 is consistent with a natural process," The Innovation, September 28, 2021.
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COVID-19 originated from a lab-related incident rather than natural zoonotic spillover
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