The updated booster is designed to target new XBB.1.5 omicron subvariant, but is also believed to be effective against the most recent BA.2.86 subvariant, also known as "Pirola."
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The updated booster is designed to target new XBB.1.5 omicron subvariant, but is also believed to be effective against the most recent BA.2.86 subvariant, also known as "Pirola."