Kindergarten students in Los Angeles attend their first day of in-person learning in April. The state of California is one of the jurisdictions requiring universal masking in schools. (Jae C. Hong/AP)

The nation’s leading association of pediatricians released new, highly anticipated covid-19 guidance for schools reopening this fall, recommending that everyone over the age of 2 wear masks, even if they are vaccinated against the virus — a more cautious approach than recent federal directives.

On Monday, the American Academy of Pediatrics called for in-person learning to fully resume and said universal masking should be part of a “layered approach to make school safe for all students, teachers and staff.”