Oxford-AstraZeneca - There's been some confusion over the efficacy of the AstraZeneca vaccine, because of a dosing mistake in one of the early trials. But what's clear is that its efficacy with a standard, two-dose schedule is 62%.
J&J - In clinical trials, the J&J vaccine was 72% effective against mild disease, 85% against severe disease, and importantly, no one was hospitalized or died 28 days after getting the vaccine.
The gold standards...
Moderna - Based on studies in about 30,000 participants, the Moderna COVID-19 vaccine was 94.1% effective in preventing COVID-19 beginning 2 weeks after the second dose. This means that people may not be fully protected against COVID-19 until at least 14 days after the second dose....
Pfizer-BioNTech - Based on studies in about 44,000 participants, the Pfizer-BioNTech COVID-19 vaccine was 95% effective in preventing COVID-19 beginning 1 week after the second dose. This means that people may not be fully protected against COVID-19 until at least 7 days after the second dose....