Medically reviewed by Anita C. Chandrasekaran, MD A strong immune system helps protect you from infections by germs such as bacteria, viruses, and fungi. Some signs may show that your immune system ...

Your immune system is like an incredibly sophisticated security team, constantly patrolling your body for threats and neutralizing them before they can cause harm. When it’s working properly, this ...

Why can the human immune system often remember a vaccination for a whole lifetime? Researchers at ...

When the immune system overreacts and starts attacking the body, the only option may be to shut the entire system down and risk developing infections or cancer. But now, scientists at UC San Francisco ...

Mycobacterium tuberculosis, the pathogen responsible for tuberculosis, has evolved a remarkably layered set of molecular ...

A perfect storm of scientific, economic, and cultural barriers are holding back immunotherapy's true potential, writes Samir Khleif.