The FDA announced has asked vaccine makers to update their COVID booster shots to target the Omicron subvariants known as BA.4 and BA.5.
from WebMD Health https://www.webmd.com/vaccines/covid-19-vaccine/news/20220630/fda-tells-vaccine-makers-to-update-boosters-to-target-omicron-subvariants?src=RSS_PUBLIC
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