The health secretary and his FDA chief, Marty Makary, can’t agree on how to proceed with vaccine safety studies.

"We know that parents just want to keep their kids safe, but part of the confusion comes from how fast information changes," ...

The new trial, funded by Pfizer, compared the company’s mRNA shot to Fluzone, one of the most widely used seasonal flu ...

This year’s respiratory virus season comes with some unique challenges. Experts and providers say they’re worried about how ...

A new study has identified three existing medications that could be repurposed to treat or prevent Alzheimer's disease.

A FREE NHS jab could be the most promising drug yet to stop Alzheimer’s, experts say. Two other medicines, to treat erectile dysfunction and motor neurone disease, also showed strong potential.

For people younger than 65, U.S.-licensed flu vaccines had an estimated effectiveness of 44% to 54% that season. Among those who completed a 6-month follow-up, the mRNA vaccine had a relative efficacy ...

Strong evidence suggests that food allergies are caused by a lack of exposure to food allergens—not by exposure to toxins ...

Health secretary RFK Jr. wants other countries to ban the use of the preservative thimerosal in vaccines, despite research showing it is a safe ingredient.

Vinay Prasad and Tracy Beth Høeg mix skepticism with new ways to define risk in pursuing sweeping changes to vaccine policy at the FDA.

Among the most commonly cited reasons for COVID vaccine hesitation are fears about side effects, long-term health ...

Takeda’s dengue vaccine demonstrated strong protection against infection and hospitalization for up to 7 years, findings ...