1.   Cholera, which is spread by contaminated water and food, causes intense diarrhea that can swiftly lead to severe dehydration and death if untreated.

2.   The microbe, known as cyclospora, causes intense diarrhea and fatigue.

3.   The microbe, known as cyclospora, is a parasite that infects the intestine and can cause intense diarrhea, weight loss and fatigue.

4.   After the race, she was hospitalized for two days for intense diarrhea and menstrual problems.