Researchers in China believe that the Omicron variant of Covid-19 might have mutated in mice before making its way back to humans.
We’re all wondering where the new Omicron variant of Covid-19 came from and looks like scientists might have an answer as to the origins of the Omicron variant — mice.
Mutations in the Omicron variant was also found to overlap with mutations known to promote adaptation to mouse hosts. The Omicron variant was first reported in South Africa on November 24 and designated as a variant of concern within two days by the World Health Organization based on the increase in infections.
The first is that Omicron could have ‘cryptically spread’ and circulated in a population with insufficient viral testing. Second, Omicron could have evolved in an immunocompromised Covid-19 patient who provided a suitable host for the virus to evolve and this was the most accepted theory until this recent study.
While the first two theories assumed that Omicron acquired these mutations in humans, the third assumed that Omicron acquired mutations in a non-human species.
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