Here’s the latest on a possible 4th COVID-19 vaccine shot for Americans.
the Food and Drug Administration to authorize a fourth shot of its COVID-19 vaccine as a booster dose for all adults.
U.S. health officials currently recommend a primary series of two doses of the Moderna vaccine and a booster dose months later. The New York-based drugmaker and its German partner BioNTech SE said that they have sought an emergency-use authorization for a second booster of their vaccine, Comirnaty, for people 65 and older who have already received a booster of any of the authorized COVID-19 vaccines.
While the study design and names of researchers conducting the trial are unclear in Pfizer’s press release, these findings appear to reflect a segment of the population that was the subject of Wednesday’s New England Journal of Medicine study. People who received a third dose generally fared better against the delta and omicron variants than people who received only two doses, according to studies the Centers for Disease Control and Prevention released earlier this year.
The CDC recommends some immunocompromised people get a three-dose primary series of mRNA shots and a fourth shot as a booster.
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