The Food and Drug Administration appears poised to make available the COVID-19 vaccines that target omicron as a second booster for people with weak immune systems and those ages 65 and older.
The COVID-19 vaccine strategy may be shifting toward Americans getting yearly vaccinations, like many do with annual flu shots.
Updated COVID boosters are now available for anyone age 12 or older. The CDC is urging anyone who is eligible to sign up but some vaccine experts say some people might want to wait.
People can get the Moderna booster if they're 18 or older, and the Pfizer-BioNTech version if they're 12 and up. In both cases, they must wait at least two months since their last COVID vaccine.
The new shots from Moderna and Pfizer-BioNTech target both the original strain of the coronavirus and the omicron BA.4/BA.5 subvariants that most people are catching now.
Health officials argue the protection of the COVID vaccine booster wanes over time and say some people need a second booster. But other infectious disease experts say three shots are enough for now.