Looking at countries that had mandatory BCG vaccination policies gave researchers a way to test hypotheses about if the TB vaccine protected against COVID.

"We thought that the molecule would decrease inflammation, but we were surprised to see that it could provide more protection at the same time."

What will happen when COVID-19 and the flu comingle this fall is a bit of wild card, but doctors and health experts have an urgent message: Get a flu shot.

What will happen when COVID-19 and the flu comingle this fall is a bit of wild card, but doctors and health experts have an urgent message: Get a flu shot.

New research examining when consumers go for "natural" products may be relevant to public receptions of a COVID-19 vaccine.

While a new study finds broad support in the US for pro-vaccine public policy, it also shows that misinformed beliefs are the biggest driver of opposition.

A new approach that shows how the immune system responds to vaccination could lead to ways to build a better flu vaccine, researchers say.

A new nasal vaccine effectively prevents infection in mice susceptible to the novel coronavirus, a new study shows.

Reports of Russia finishing development of a vaccine for COVID-19 called Sputnik-V are more complicated than they appear, an expert argues.

How far off is a COVID-19 vaccine? There's more work to be done, but we're on the path, an expert says. Here, she explains how vaccines become reality.