Commentary
In September, The New England Journal of Medicine (NEJM) published a new Moderna-sponsored study on the efficacy of the initial bivalent vaccine targeting BA.1 in comparison to the original monovalent booster.
Questions About the Bivalent COVID-19 Booster Vaccine
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A COVID-19 vaccine in Washington in a May 6, 2021, file image. Chip Somodevilla/Getty Images
By Rav Arora
Updated:
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