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Tweaked COVID boosters in US must target newer omicron types
U.S. regulators are telling COVID-19 vaccine makers to tweak any booster doses intended for fall so they protect against the newest omicron relatives

Tweaked COVID boosters in US must target newer omicron types

U.S. regulators are telling COVID-19 vaccine makers to tweak any booster doses intended for fall so they protect against the newest omicron relatives