False information and unclear messaging from government leaders contribute to vaccine hesitancy, making it more likely that outbreaks, hospitalizations, and even deaths will occur. Clear guidance ...

RFK Jr. has claimed measles can be treated with vitamin A and that severe infection is linked to poor diet. But many experts who spoke with ABC News disagreed.

The U.S. Food and Drug Administration (FDA) has issued its recommendations to vaccine makers on which virus strains to select when manufacturing influenza (flu) vaccines for the 2025-2026 U.S. flu ...

As the world marks the fifth anniversary of the start of the coronavirus pandemic, one question has persisted: How many lives ...

The Food and Drug Administration has issued recommendations for the composition of influenza shots for the upcoming ...

Vaccine hesitancy was rising even before COVID-19 emerged – but the pandemic exacerbated the trend. More kindergartners are ...

Vaccination rates remain high, but just below a critical "community immunity" threshold of 95%. Measles vaccination rates ...

Texas is experiencing its largest measles outbreak in 30 years. WNIJ’s Peter Medlin spoke with a religious studies professor ...

Data on the number of cases for these diseases from the pre-vaccine era is hard to come by, and even the case counts are ...

The cutting-edge technology used in COVID-19 shots may lead to new treatments for other diseases. But some conservatives are ...

Measles is one of the most contagious viruses in the world, and can live on surfaces or suspended in the air for two hours.