MIT researchers have discovered how an immune system molecule triggers neurons in a specific brain circuit to shut down social behavior in mice modeling infection.

This is the best way for people 50 and older to boost their immune system Watch little girl's face light up when Belle and Ariel visit her in the hospital Parents, teen charged for OWI crash involving ...

The immune system faces a delicate balancing act: it must be aggressive enough to fight infections and cancer, yet restrained enough to avoid attacking the body's own tissues.

What if the cure for chronic disease has been inside us all along? Immunologist Beck Brachman reveals how our immune system quietly stores data on every infection, toxin, and stress we’ve ever faced — ...

Immune tolerance is the state of unresponsiveness of the immune system to substances or tissues that have the potential to induce an immune response. Self tolerance to an individual's own antigens is ...

Chemotherapy and radiation can weaken your immune system, making you more likely to get sick. It can take up to nine months or more for your immune system to get back to normal after treatment.