The COVID-19 mRNA vaccines put nanomedicine in the spotlight as a potential way to treat diseases like cancer and HIV. While the field isn’t there yet, better design could help fulfill its promise.

New data on the second booster suggests the older you are, the more you need it.

Many COVID-19 vaccination campaigns encourage doctors to serve as a trusted source of vaccine information. But certain vaccine-hesitant providers may stymie these efforts.

Moderna will ask the FDA to allow emergency use for its vaccine in children as young as 6 months, a step many parents have been anticipating.

The latest addition to the omicron lineage has been making waves in Europe. Whether it will do the same in the U.S. depends on rates of vaccination and prior infection.

Because COVID-19 is a relatively new virus, researchers still aren’t sure exactly how long vaccines and prior infections provide protection.

Whether about a comet hitting the Earth or a virus infecting the world, fear-based messages often do not succeed at changing people’s behaviors.

Mistrust of vaccine is high among people of color in U.S. and U.K., but unequal access appears to be greater barrier in U.S., researchers say.

Studies suggest seniors without the booster shot run a higher risk of infection and hospitalization from the omicron variant.