FDA approves new COVID vaccines but restricts access for young children and some adults.

The FDA has approved updated COVID-19 vaccines but has restricted access for certain children and adults. Pfizer's vaccine is no longer available for children under 5, while Moderna's vaccine is only for children with serious health issues. The new vaccines target a newer virus strain and are expected to ship soon, but access depends on decisions by health authorities and insurers. The restrictions have sparked concerns from medical groups about limiting vaccine access.