Q&A: What should you know about the new COVID-19 vaccine?

Ahead of the fall respiratory virus season, the Food and Drug Administration has approved two updated COVID-19 vaccines. The new messenger RNA, or mRNA, vaccines from Moderna and Pfizer/BioNTech are formulated to better target ...


1 in 6 kids haven't gotten all of their vaccines. Why?

Most early childhood vaccines require three or four doses for best protection, but more than 1 in 6 toddlers aren't getting them all, leaving them vulnerable to potentially deadly infections, a new study finds.

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