What is E. Coli? E. Coli is a type of bacteria that lives in the intestines of humans and animals and anyone can get it. It also causes food poisoning to occur in the body. Sources of E. Coli are not well washed hands, using unclean cooking utensils, dairy products or food containing mayonnaise such as coleslaw or potato salad, fish or oysters, raw vegetable or fruit juices and dairy products,undercooked meats or eggs, water from a well or stream, or city or town water that has not been treated. The incubation period of E. Coli is 1-10 days. Symptoms of E. Coil are fever, gas, loss of appetite,stomach cramping,vomiting which is very rare. There are different types of E.Coli but most are them are harmless. To prevent E. Coli stay hydrated and avoid eating high-risk foods, especially undercooked ground beef, unpasteurized milk and make sure you wash your hands.