FDA reviewers endorse J&J single-dose shot, laying path for 3rd US vaccine
J&J’s single-dose vaccine may not have produced quite the stellar numbers of the mRNA shots, but it still won a ringing endorsement from FDA reviewers, who argued in briefing documents that it could provide robust protection against the still-raging virus.
The FDA confirmed that across just under 40,000 volunteers, the vaccine proved 66% effective at preventing symptomatic Covid-19, including 72% effective in the United States. Although that’s short of the 95% figures put up by Moderna and Pfizer-BioNTech, the shot was still 85% effective at stopping severe disease 28 days after administration. There were seven deaths in the placebo group — zero in the vaccine group.
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