The vaccine causes your body to make a small amount of COVID protein, which your body recognizes as foreign and destroys.

It would be another two years before French researchers would identify a retrovirus as the cause of AIDS, or acquired immunodeficiency syndrome, according to the CDC. It would be another three years ...

Learn about anaphylaxis, a severe allergic reaction, its symptoms, causes, diagnosis, treatment, prevention, and importance of awareness.

Researchers have identified a compound that could block certain life-threatening and hard-to-treat allergic reactions.

Our gut is constantly exposed to a wide variety of foods, and the gut microbiome helps the immune system learn what’s harmful and what’s not. A healthy balance of gut bacteria plays a key role in ...

One of the biggest risks of current allergy treatments is the potential for severe allergic reactions, including life-threatening anaphylaxis. This happens when the immune system mistakes the ...

Nearly everyone scratches mosquito bites, but something as simple as scratching an itch turns out to be far more biologically ...