The 74 reports childhood vaccination rates have dropped in 1,600 US counties since the pandemic, risking herd immunity amid ...

The US is grappling with a significant measles outbreak in 2025, with 1,267 cases confirmed across 38 states, surpassing ...

The nation — and Olympic athletes, like Noah Lyles — are in another summer surge of COVID infections. CDC officials say the virus has become endemic. That means it is here to stay in a ...