The US Food and Drug Administration will now require Covid-19 vaccines from Pfizer/BioNTech and Moderna to use expanded ...

The approval applies to anyone aged 18 and older who has a risk of being exposed to the virus. But the FDA and the Centers ...

Kennedy Jr. testified that vaccines are exempt from pre-licensure safety studies. Is it actually the case that vaccines are approved without safety studies? No, this is not true. Vaccines undergo ...

On May 20, 2025, the Food and Drug Administration announced a new stance on who should receive the COVID-19 vaccine. The ...

This week, mRNA vaccines are set to face intense scrutiny from critics in Congress. Here's an explainer of how we know they are safe and effective.

Seattle vaccine experts were confused by the country's apparent new direction around updated COVID-19 shots, which top FDA ...

On May 20, U.S. Food and Drug Administration (FDA) officials announced that Covid-19 vaccines will no longer be available to ...

US regulators grant full approval to Novavax shot but sharply limit eligibility. New studies on heart risks required, raising ...

Placebo testing has been part of the process since the 1940s. It’s unclear what additional measures would achieve — but it may slow development.

The vaccine for measles, mumps and rubella contains "a lot of aborted fetus debris," as U.S. Health Secretary Robert F.

The CDC began recommending Ixchiq last year for adults traveling to countries where chikungunya is common. The vaccine uses a ...

"Dengue can become severe within a few hours," the advisory states. "Severe dengue is a medical emergency, usually requiring ...