Many people with tuberculosis stay in the latent infection stage, but some develop the active disease. Both stages are treatable. Tuberculosis (TB) is a bacterial infection that usually affects the ...

HIV symptoms vary depending on the stage of infection, which are acute, chronic, and AIDS. During the acute infection stage, flu-like symptoms of fever, fatigue, and swollen lymph nodes may occur.

A new study from the University of Pittsburgh Center for Vaccine Research published today in the Journal of Experimental Medicine describes a previously unappreciated role for a class of immune cells ...

The human immunodeficiency virus (HIV) is a virus that attacks the body's immune system. If not treated, it can lead to the autoimmune deficiency syndrome (AIDS). As happens with other viruses, when a ...

Scientists have long believed that a newborn’s immune system was an immature version of an adult’s, but research from Cornell University shows that newborns’ T cells—white blood cells that protect ...