Omicron variant may have evolved in rats, one theory says

The recently recognized omicron coronavirus variant may have evolved in a nonhuman animal types, possibly a rodent, some researchers recommend.

According to this theory, an animal may have got SARS-CoV-2, the infection that triggers COVID-19, around mid-2020, STAT reported. After collecting numerous anomalies in the animal, the transformed coronavirus then would have made the dive back to people. This chain of occasions can be referred to as reverse zoonosis, in which a pathogen leaps from people to animals, followed by zoonosis, in which a bacterium passes from animals to people.

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