Most Covid Vaccines Will Work as Boosters, Study Suggests In a comparison of seven different brands, researchers found that most shots give a strong boost, even in mix-and-match combinations. https://ift.tt/2XidLiy https://nyti.ms/3eyQv5F

In a comparison of seven different brands, researchers found that most shots give a strong boost, even in mix-and-match combinations.

from NYT > Top Stories https://nyti.ms/3xLg3Y4
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