What Is the Origin of COVID-19 Variants Like Omicron?

According to recent research from Tel Aviv University, immunosuppressed chronic COVID-19 patients are thought to be the source of several SARS-CoV-2 variants. The researchers hypothesize that a compromised immune reaction, particularly in the lower airways of these chronic patients, may delay complete recovery from the virus and cause the virus to evolve often during the course of prolonged infection. In other words, the researchers explain that the virus’s unrestricted survival and reproduction in the body of the immunosuppressed patient result in the emergence of numerous variants.

Furthermore, the variations reported in chronically sick COVID-19 patients had many of the same mutations in their development as those found in variants of concern for severe illness, notably those linked with evading disease-killing antibodies. The new findings show that, although rapidly-spreading variations are rare among the numerous strains harbored by immunocompromised people, the likelihood increases and they do arise when global infection rates boom.

Source: What Is the Origin of COVID-19 Variants Like Omicron?

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