1. Biological therapy often involves the use of substances called Biological …

2. Biological therapy is also used to protect the body from some of the side effects of certain treatments

3. Biological therapy is a form of treatment that uses portions of the body's natural immune system to treat a disease

4. Biotherapy (also called biological therapy or immunotherapy) is a treatment to activate or repair the ability of the body’s immune system to fight cancer, rheumatoid arthritis, infections, and other diseases.

5. Biotherapy: Treatment to stimulate or restore the ability of the immune (defense) system to fight infection and disease. Biological therapy is thus any form of treatment that uses the body's natural abilities that constitute the immune system to fight infection and disease or to protect the body from some of the side effects of treatment.