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Omicron BA.2 Subvariant

What We Know About the New COVID-19 Variant BA.2

Since the onset of the pandemic well over two years ago, several variants of the SARS-CoV-2 virus have been identified. Variants of COVID-19 – and all RNA viruses, for that matter – occur when there is a mutation in the virus’s genetic makeup. They are a common and an expected part of a virus’s natural cycle. For example, the influenza (flu) virus mutates roughly every year. Last summer, the COVID-19 Delta variant spread through the world at a mind-boggling speed....
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