Study examines the severity of the SARS-CoV-2 Omicron BA.2 subvariant

In a recent study that represents the largest to date to examine the severity of the SARS-CoV-2 Omicron BA.2 subvariant (the strain making a re-emergence this fall), a team led by investigators at Massachusetts General Hospital (MGH) determined that the BA.2 subvariant is less severe than the previous Delta variant and less severe to an even greater extent than the original Omicron variant.

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