FDA says single-dose shot from J&J vaccine prevents severe Covid-19

Johnson & Johnson's single-dose vaccine offers strong protection against severe COVID-19, according to an analysis released by US regulators that sets the stage for a final decision on a new and easier-to-use shot to help tame the pandemic. The long-anticipated shot could offer the nation a third vaccine option and help speed vaccinations by requiring just one dose instead of two. Food and Drug Administration scientists on Wednesday confirmed that overall the vaccine is about 66% effective at preventing moderate to severe COVID-19, and about 85% effective against the most serious illness. The agency also said J&J's shot is safe. The analysis is just one step in the FDA's evaluation. On Friday, the agency's independent advisers will debate if the evidence is strong enough to recommend the shot. With that advice, the FDA is expected to make a final decision within days. The COVID-19 death toll in the US topped 500,000 this week, and the vaccination drive has been slower than ...

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