An analysis by U.S. regulators says Johnson & Johnson's single-dose vaccine protects against COVID-19.
The report Wednesday confirmed that overall the vaccine is about 66% effective at preventing moderate to severe COVID-19.
On Friday, a panel of experts to the Food and Drug Administration will debate if the evidence is strong enough to recommend the long-anticipated shot.
The FDA is expected to make a final decision within days. If the FDA clears the J&J shot for U.S. use, it won’t boost vaccine supplies significantly right away.
Only a few million doses are expected to be ready for shipping in the first week.