The average human has about 1.8 trillion immune cells. These cells patrol the body for bacteria, viruses, cancers, and other threats. Vaccines enhance this security system by teaching our immune cells ...

A macrophage that has already fought off one infection does not return to a blank slate. It carries chemical scars, etched ...

Measles can induce immune amnesia, a phenomenon that eliminates acquired immunity to other infectious diseases.

New research shows how the early environment shapes allergy risk, revealing how microbial exposure trains the immune system.

A new study from the University of Gothenburg may help guide the development of better influenza vaccines. Memory cells in ...

Add Yahoo as a preferred source to see more of our stories on Google. Measles begins with a blotchy red rash that typically appears on the face and then spreads to the body of the person infected.

Conventional wisdom has held for some time that children who grow up in environments rich with biodiversity — farms, homes with pets, rural settings in general — are less likely to have allergies. The ...

Kennedy researchers have uncovered new clues about how immune memory exacerbates inflammation in rheumatoid arthritis, which could lead to better ways to control the disease. Rheumatoid arthritis (RA) ...

Measles can erase the immune system's memory, leaving us vulnerable to diseases we were previously protected against, new research has found. Two separate studies, published Thursday in the journals ...

Protease hypersensitivity leaves lasting immune memory in lung tissue, influencing future inflammation. Read more.

New research shows the common cold virus may stay hidden in the body and spread without symptoms long after recovery.