Stomach viruses can enter your mouth, nose, and eyes. But there’s plenty you can do to prevent getting sick after you come into contact with them. A stomach virus is an infectious microscopic organism ...

Dear Doctor K: I was pretty sick recently, and my doctor said I had gastroenteritis. I’ve never had it before. How did I get it? And what can I do about it? Dear Reader: I’ll bet you’ve had ...

Noninfectious gastroenteritis and colitis are both conditions that affect your digestive tract. While they may lead to similar symptoms, they can have different causes, risk factors, and treatments.