Dose amount: 1 dose
Efficacy: Overall, 66.1% efficacy in preventing moderate to severe COVID-19 in adults 28 days or more after vaccination. Slightly higher in the U.S. population (72% efficacy in preventing moderate to severe COVID-19 and 85.9% efficacy in preventing severe or critical COVID-19).
Safety: No serious safety concerns reported. There were temporary side effects reported.
By comparison, the Pfizer vaccine is 95% effective at preventing symptomatic COVID-19 after two doses, and the Moderna vaccine was 94.1% effective after the second dose.
The J&J vaccine will mean more people can get the vaccine faster because they only need one dose and it is easier to store, so there's less of a chance the vaccine will go bad. There's also an increased dose availability after the FDA approves it.
Do you think you'll get the J&J vaccine given the chance?