COVID-19 vaccine recommendations could be changing, according to the U.S. Food and Drug Administration. FDA leaders said on May 20 that clinical trials will be required to approve annual COVID-19 ...

In a new study, bats lap up vaccine-laced saline or chow down on vaccine-carrying mosquitoes. Will that have any impact on the flying mammal's immune system?

Six years since COVID-19 was declared a pandemic, here’s a snapshot of preparedness at a time of global health funding cuts, policy shifts and the spread of misinformation.

As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well. It had one of its worst effectiveness rates in more than a decade.

In January 2025, a measles outbreak erupted on the western edge of Texas and soon spilled over to New Mexico and other states. The overall outbreak would become the largest the country has seen since ...

A group of experts that advises the US Centers for Disease Control and Prevention on its vaccine recommendations has suspended an anticipated push to stop recommending mRNA-based Covid-19 vaccines ...

Practitioners nationwide are striving to do what’s best for children’s health, while staying supportive in the face of mistrust and confusion.

Some members of the CDC’s vaccine advisory panel have publicly questioned the safety and manufacturing of the shots, including raising a debunked theory that DNA contaminants in the vaccines are ...

The COVID-19 pandemic brought messenger RNA (mRNA) vaccines to the forefront of global health care. After their clinical trial stages, the first COVID-19 mRNA vaccine was administered on 8 December ...

Updated mRNA-1273 vaccine was effective against severe COVID-19 outcomes in older and high-risk adults during the 2024-2025 season.

Six years ago, on March 11, 2020, the World Health Organization declared COVID-19 a global pandemic. Here's what else ...

A futuristic “DNA origami” vaccine platform may one day outperform mRNA shots while being easier to produce and distribute. Credit: Shutterstock Scientists have developed a new DNA origami–based ...