J&J proposes sliding booster timelines as FDA questions lack of data for Delta, older adults before adcomm
While both Pfizer/BioNTech and Moderna are looking to administer boosters for their Covid-19 vaccines six months after the initial two-dose series, J&J — which has vaccinated about 15 million Americans so far with its one-shot vaccine — is taking a more unique approach with boosters.
According to briefing documents released ahead of Friday’s FDA adcomm on the booster dose, J&J is calling for its boosters to be administered anywhere from two months to six months following the initial shot, depending on the strength of the immune responses.
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