As delays hamper some second coronavirus vaccine doses, a debate rages: Prioritize one shot or two?

February 26, 2021 0 By boss

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The recommended intervals between doses for the Pfizer-BioNTech and Moderna vaccines are 21 and 28 days, respectively, but the Centers for Disease Control and Prevention says there’s wiggle room for both vaccines, advising that a six-week period is acceptable.

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