What are the causes of this disease? Legionella bacteria is responsible for most cases of Legionnaires’ disease. The bacterium is often found outdoors but the Mayo Clinic says it rarely causes ...

Prince Frederik of Luxembourg died due to a rare mitochondrial condition called POLG disease.

Health What is Legionnaires' disease? 2 dead, 58 diagnosed in New York City The rare disease has caused two deaths and 58 diagnoses after an outbreak in Harlem.

Eric Dane revealed he's been diagnosed with amyotrophic lateral sclerosis, also known as ALS. Here's what to know about the rare disease.

Prince Frederik of Luxembourg died from a genetic disease called PolG, but experts hope his passing could bring more awareness to the rare condition that impacted his life.

With the first-ever case of Chronic Wasting Disease (CWD) in the Georgia, here's what the The North Carolina Wildlife Resources Commission has to say about the disease. What is Chronic Wasting ...

Valley fever is an infectious disease caused by the Coccidioides fungus that grows in the soil and dirt in some areas of California.

Other diseases: What causes brain tumors? Here's why they're not that common. Is tuberculosis contagious? Active TB is highly contagious and spreads through airborne particles that are released ...

Many celebrities, including Justin Timberlake, allegedly contracted Lyme disease; here's the symptoms and best ways to treat it.