The U.S. Food and Drug Administration is considering a new COVID-19 vaccine strategy that would see Americans getting a single annual shot, similar to the flu vaccine. MORE: DeSantis calls for permanent ban on COVID mask and vaccine mandates. "In age and risk groups presumed to have 'insufficient preexisting immunity,' two doses of an approved or authorized COVID-19 vaccine may be needed to induce the expected protective immunity for the desired duration," the proposal reads. For the flu vaccine, researchers and modelers often look to the southern hemisphere, which experiences its flu season first -- typically from May to October -- to predict how the season will look in the U.S. and model the flu vaccine accordingly. FDA proposes most Americans receive one annual COVID vaccine, similar to flu originally appeared on abcnews.go.com

Source: ABC News January 24, 2023 04:47 UTC