Meningitis can be a frightening diagnosis. Our expert guide breaks down the different types—bacterial, viral, and fungal—and ...

Vaccines contain modified (weakened or killed) virus or bacteria that trigger the cat's immune system to develop antibodies ...

A secondary analysis of a large trial shows that exposure to the HIV drug abacavir is linked to an elevated risk for major ...

An STI is only considered a disease when it causes symptoms. The main difference between the two is ... tailored advice on testing timelines or preventive measures like PEP for HIV. Negative Results: ...

Oral symptoms of Crohn’s disease are much more common in children than adults. Fewer than 1 percent of adults with Crohn’s develop mouth lesions; in children, the percentage is between 50 and ...

Ulcerative colitis can affect more than just your gastrointestinal tract — it can affect your skin, too. Learn about symptoms and treatments for better skin health.