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Vaccines may work better if arms are alternated for each shot
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Vaccines may work better if arms are alternated for each shot

by Robin Foster Credit: Unsplash/CC0 Public DomainWhen getting vaccines, switching arms for each dose may produce greater immunity than having the jabs delivered into the same arm. That’s the finding from a new study in the Journal of Clinical Investigation that looked at the first two doses of COVID vaccines. Those who alternated arms showed...