In the 2023-24 school year, the CDC reported vaccine coverage among kindergartners decreased across all reported vaccines.

The number of vaccine exemptions reported among U.S. kindergarteners reached another record high during the 2023-24 academic year, the record set last year. According to the Centers for Disease Control and Prevention (CDC),

A record share of US kindergartners had an exemption for required vaccinations last school year, leaving more than 125,000 new schoolchildren without coverage for at least one state-mandated vaccine,

The centers noted that exemptions increased in 40 states for the past school year, and 14 of them had exemption rates of more than 5%. Coverage of the MMR vaccine, the polio vaccine, and DTAP vaccines,

The effectiveness of this year's influenza vaccine was lower in South America than last season, the Centers for Disease Control and Prevention reported Thursday, which might be a clue to how much protection the shots could offer people in the U.

Early estimates on the effectiveness of this year’s flu vaccines indicate they may be less effective at preventing hospitalization than in years past, based on data from South America, where the annual flu season occurs earlier.

Among babies 6 months and younger hospitalized for COVID, 90% of their mothers weren't vaccinated during pregnancy, leaving them vulnerable to severe infection.