Hepatitis is caused by a virus in the blood. Infection occurs through exposure to the virus. Hepatitis B and C cause liver inflammation.
Coronavirus is a term describes a family of viruses, common in both animals and humans.
Cirrhosis is a condition in which the liver is scarred due to liver disease. Learn about symptoms and treatment.
A type of bacterium, Clostridium difficile (C. diff), causes one of the most common health care-associated infections in the United States.
The human immunodeficiency virus (HIV) impairs the immune system by infecting certain immune cells.
There are all sorts of ways to get an infectious disease—from people and animals, to eating contaminated foods, to environmental exposure.