You must have often seen children playing in the mud. Many children even eat the mud while playing in it. Young children love ...

During infections, the immune system needs to distinguish foreign antigens that are expressed by invading bacteria and viruses from self-antigens that are expressed by cells of the body.

Scientists say they have shed new light on how bacteria protect themselves from certain phage invaders -- by seizing genetic material from weakened, dormant phages and using it to 'vaccinate' ...

Like people, bacteria get invaded by viruses. In bacteria, the viral invaders are called bacteriophages, derived from the Greek word for bacteria-eaters, or in shortened form, "phages." ...

A hearing on Tuesday will determine whether Decatur police officer Mac Bailey Marquette is granted immunity from a murder charge in the fatal shooting of Steve Perkins, or if the case will proceed to ...

People with AIDS also have HIV, as HIV is the first stage of AIDS. Learn about the differences, how the conditions overlap, ...

Taking supplements is often touted as a way to boost the immune system, but Jeffrey Bland says that’s not possible. Here’s ...

The measles outbreak has taken the country by storm. But there's been a lot of misconceptions spread lately. Experts explain.

New research shows how a specially trained population of immune cells keeps the peace by preventing other immune cells from attacking their own. The study provides a better understanding of immune ...

In an interview with Fox News' Sean Hannity, Health and Human Services Secretary Robert F. Kennedy Jr. made several ...

The new head of the Department of Health and Human Services (HHS), Robert F. Kennedy, Jr., has expressed some doubts about ...

Vasomotor rhinitis is a cause of runny nose and congestion not related to allergies or an infection. Learn about the symptoms ...