T cells are some of the immune system's most important warriors. They can stop tumor growth and even fight off severe ...

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 ...

We often hear that the coronavirus is finding better ways to attack cells, but the virus does not have an intentional purpose of spreading. Viruses happen to attach and infect cells by obeying the ...

Multiple sclerosis is also caused by a virus carried by almost all humans. A new study provides an explanation as to why only ...