Fact Sheets

Parasitic Diseases
Parasitic diseases are infections caused by organisms that are often microscopic. Learn about symptoms and treatment.
Meningitis
Meningitis is inflammation of the brain and spinal cord membranes, usually caused by an infection. Learn about symptoms and treatment.
Clostridium difficile ( C. diff )
A type of bacteria, Clostridium difficile ( C. diff ), causes one of the most common health care-associated infections in the United States.
Pneumonia
Pneumonia is an infection that inflames air sacs, which may fill with fluid, in the lungs. Learn about symptoms and treatment.
Endocarditis
A condition in which the membrane lining the heart's chambers and valves becomes inflamed.
Human Immunodeficiency Virus (HIV)
HIV is a retrovirus that impairs the immune system and causes AIDS. Learn about symptoms and treatment.
Smoking and Cancer
Stopping smoking makes cancer treatments more effective, lessens treatment complications, and decreases the chances of cancer returning.
Quit Smoking
Tobacco dependence treatment and research are priorities at Yale Medicine; we offer new therapies and clinical trials to help people quit smoking.
Avoiding Infectious Diseases
There are all sorts of ways to get an infectious disease—from people and animals, to eating contaminated foods, to environmental exposure.
Tobacco Cessation in the Emergency Department
“Tobacco cessation“ is another term for quitting smoking.