Article

Evidence for a mouse origin of the SARS-CoV-2 Omicron variant

2021-12-15

Abstract excerpt

<h4>ABSTRACT</h4> The rapid accumulation of mutations in the SARS-CoV-2 Omicron variant that enabled its outbreak raises questions as to whether its proximal origin occurred in humans or another mammalian host. Here, we identified 45 point mutations that Omicron acquired since divergence from the B.1.1 lineage. We found that the Omicron spike protein sequence was subjected to stronger positive selection than that...

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Literature Corpus work: 84ad4a86-f818-594c-9193-e7d5747a8528
DOI: 10.1101/2021.12.14.472632

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