How does the Johnson Johnson vaccine compare to other coronavirus vaccines? 4 questions answered
- Written by Maureen Ferran, Associate Professor of Biology, Rochester Institute of Technology
The Johnson & Johnson vaccine only requires one dose. Phill Magoke/AFP via Getty ImagesEditor’s note: On Tuesday, Feb. 24, the U.S. Food and Drug Administration released the results of its trial of the Johnson & Johnson coronavirus vaccine. The FDA found the vaccine to be safe and effective and it is expected to grant emergency use...

