How do vaccines work? Here's what medical experts want you to know about safety and efficacy.

Health and Human Services Secretary Robert F. Kennedy Jr. said this week that he's pulling the plug on nearly $500 million in funding for the development of mRNA vaccines. Here's how they work.

An experimental treatment protects mice from COVID-19, flu, bacteria, and more.

Vaccines have traditionally worked by teaching the immune system to recognize a specific virus or bacterium—in effect, ...

Vaccines boost the immune system's ability to fight off diseases. Vaccines undergo rigorous testing to ensure safety and effectiveness. Widespread vaccination contributes to herd immunity, protecting ...

Health and Human Services Secretary Robert F. Kennedy Jr.’s decision to terminate $500 million in federal funding for mRNA vaccine development threatens to unravel one of medicine’s greatest recent ...

The new GLA-3M-052-LS+OVA vaccine can be delivered as a nasal spray. Three doses protected mice from infection from SARS-CoV-2 and other coronaviruses for three months, and reduced the viral load in ...

The FDA is already about to start work on the vaccine for next season. — -- Flu season isn’t over yet, but the U.S. Food and Drug Administration (FDA) recently announced that in less than two ...

Vaccinations used to seem simple. Your doctor would tell you which to get, and you’d roll up your sleeve at the office or a nearby pharmacy. Now we’re seeing changing recommendations, and some people ...

Experts in vaccines and vaccination — including pediatricians — work together throughout the year to update the Recommended Child and Adolescent Immunization Schedule for ages 18 years or younger. The ...

Sievers is a vaccine researcher and Ph.D. candidate at the University of Cambridge and the NIH Vaccine Research Center. I’m a vaccine researcher. And I’m terrified of needles. It’s not something I’m ...

The adjuvanted respiratory syncytial virus (RSV) vaccine RSVPreF3 was immunogenic in lung transplant (LT) and allogeneic hematopoietic cell transplant (alloHCT) recipients. No vaccine-associated ...