FDA says some young kids can't get an updated COVID booster until next year

Nearly all Americans will be eligible to get a dose of the updated COVID-19 vaccines, following a decision to expand emergency use authorization for the shots from Moderna and Pfizer-BioNTech to most children as young as 6 months old.

The Food and Drug Administration announced the expanded authorization on Thursday, clearing all recipients of Moderna's COVID-19 vaccine to get a booster dose from the company's newest "bivalent" vaccines — which are tailored to recent Omicron variants — at least two months after their last "monovalent" shot.

But only a portion of the youngest...