E. coli, short for Escherichia coli, is a type of bacteria that is commonly found in the intestines of healthy people and animals. Most strains of E. coli are harmless and even help keep the digestive tract healthy. However, some strains, such as E. coli O157:H7, can cause severe symptoms, including stomach cramps, bloody diarrhea, and vomiting. E. coli O157:H7 is the leading cause of acute kidney failure in children and can be life-threatening.
E. coli can be transmitted to humans through various sources, including contaminated water, food, and contact with infected individuals. Risk factors for E. coli infection include consuming undercooked ground beef, unpasteurized milk or apple juice, and soft cheeses made from raw milk. The majority of E. coli infections in the United States occur from June through September, although the reason for this is unclear.