COVID-19 variant-tracking estimates from the Centers for Disease Control and Prevention (CDC) indicate a new Omicron sub-variant is rapidly becoming prevalent in the United States. Dubbed BA.2.12.1, ...
Panel A shows the lineage of mutations that have been identified in the omicron BA.1, BA.2, BA.2.12.1, and BA.4 or BA.5 subvariants of SARS-CoV-2, as compared with the reference WA1/2020 isolate. BA.4 ...
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