HEPA filter - A high efficiency particulate air filter used to purify the air in transplant rooms to decrease the risk of infection. Herpes - A group of viruses, including two common viruses, herpes simplex and herpes zoster. Herpes zoster , also known as shingles, can produce painful eruptions and nerve inflammation as underlying nerve routes are affected by the virus. Hormone therapy - Treatment that prevents certain cancer cells from getting the hormones they need to grow. Hormones - Chemicals produced by glands in the body.
Hormones control the actions of certain cells or organs.
Imaging - Procedures that produce pictures of areas inside the body. Immune system - The complex group of cells and organs that defends the body against infection and disease. Immunotherapy - Treatment to stimulate or restore the ability of the immune system to fight infection and disease. Also called biological therapy. Immunosuppression - A decrease in the ability of the immune system to fight infection.