E. coli.

Escherichia coli, also known as E. coli, is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms.
==Symptoms==
* Stomach pains and cramps.
* Diarrhea that may range from watery to bloody.
* Fatigue.
* Loss of appetite or nausea.
* Vomiting.
* Low fever < 101 °F/ 38.5 °C (not all people have this symptom).
Category:Digestive system
Category:Bacteria