Infections and immune system

The immune system is made up of a collection of diverse cells with various abilities. Together, they protect the organism from most germs. If the immune systems fails, the body gets sick. If it makes a mistake and fights the wrong enemy, illnesses such as allergies can occur. Sometimes, it even attacks the body’s own cells and causes autoimmune disorders such as rheumatoid arthritis.

Infections and immune system from A to Z