Explained: What to know about Omicron’s subvariant BA.2.12.1 that driving a new COVID-19 wave
BA.2 infections aren’t as mild as once thought and even newer versions of Omicron are circulating and spreading fast Omicron’s latest subvariant BA.2.12.1, is spreading rapidly and overtaking the BA.2 Omicron subvariant. The latest variant is also responsible for about one-fourth
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