All BA.2 articles
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NewsResearchers find SARS-CoV-2 Omicron BA.2 subvariant less severe than earlier variants
team led by investigators at Massachusetts General Hospital (MGH) has determined that the SARS-CoV-2 Omicron BA.2 subvariant is less severe than the previous Delta variant and less severe to an even greater extent than the original Omicron variant.
