Conditions list medically reviewed by George Krucik, MD, MBA
Juvenile idiopathic arthritis is the most common type of arthritis in children. Learn about juvenile idiopathic arthritis symptoms, diagnosis, and treatment.
Porphyrias are rare types of genetic blood disorders in which patients have a defect in heme production, an important part of hemoglobin. Blisters are a sign of…
Typhus is caused by bacteria transmitted by flea, mite, louse, or tick bites. Scratching the bite opens the skin and allows bacteria to enter the bloodstream.
Learn about the causes and symptoms of the West Nile virus.
Poliomyelitis, or polio, is a highly contagious disease that is caused by a virus that attacks the body's nervous system.
A transfusion reaction is when your body has an adverse response to a blood transfusion. Learn how transfusion reactions occur and how to minimize your risk.
Smallpox is an extremely contagious and deadly virus for which there is no known cure. This disease has been completely eradicated.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.