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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
How does the Johnson Johnson vaccine compare to other coronavirus vaccines? 4 questions answeredThe Johnson & Johnson vaccine only requires one dose. Phill Magoke/AFP via Getty Images

Editor’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...

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