Beneath the skin. The abbreviation for sexually transmitted disease that is, any disease you can get through sexual activity. A warning sensation of disease, illness, or problem. Able to cause defects in normal development, as in birth defects. A form of hepatitis caused by chemicals rather than a virus.
Liver enzymes in the blood which can signal liver infection.
The way a disease or illness can move or spread from one person to another. Medical action taken to control or manage illness or disease. Inactivated viruses or bacteria injected or given orally to prevent infectious disease. Pertaining to a virus. Tiny substances that cause infection and disease in humans, animals, or plants by invading cells and changing their chemistry in order to make more viruses.