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 ...

Medical experts repeatedly reiterate how vital vaccinations are to global health. As of last spring, the World Health Organization (WHO) estimated that worldwide immunization efforts have saved at ...

Find out how different vaccines for the coronavirus cause your body to create antibodies that fight the virus.

The 2025-2026 COVID-19 vaccines available in the United States include Moderna, Pfizer-BioNTech and Novavax. The vaccines are all approved for people age 65 and older. Each vaccine also is approved ...

There are several basic types of vaccines being developed to battle COVID. Across the globe, scientists are scrambling to develop multiple vaccines with the goal of stopping the deadly coronavirus in ...

Herd immunity occurs when enough people become immune to a disease, either through vaccination or previous infection. This can reduce the likelihood of it spreading and increase protection for ...

The decades-long quest to harness the power of messenger RNA to enhance cancer treatment has focused primarily on its value ...

Vaccination campaigns are widely considered to be a public health success story. Since Edward Jenner pioneered the smallpox vaccine in the 1700s, they’ve significantly reduced disease rates around the ...

Allen Institute scientists are learning why vaccines can trigger a weaker response in older adults, around age 65, and what ...

West Coast states are teaming up to issue their own vaccine guidelines in the face of rapid changes at the Centers for Disease Control and Prevention and the Food and Drug Administration. The federal ...