Ay.4.2 Covid Variant No More Vaccine Resistant Than Original Delta Report Finds
AY.4.2 is a sub-type of the Delta variant that has made headlines over the past few weeks due to its rise in the U.K., where it has accounted for up to 15 percent of new cases. Research has found that AY.4.2 appears to have a small growth advantage over other circulating variants, though according to the U.K.’s risk assessment for the variant it’s not yet entirely clear why. The new report, a technical briefing from the U....