How many strains of E. coli cause diarrhea?

How many strains of E. coli cause diarrhea?

Six different strains of E. coli are known to cause diarrhea. These strains are:

• Shiga toxin-producing E. coli (STEC): This is the bacteria most commonly known for E. coli food contamination. This strain is also called enterohemorrhagic E. coli (EHEC) and verocytotoxin-producing E. coli (VTEC).
• Enterotoxigenic E. coli (ETEC): This strain is commonly known as a cause of travelers’ diarrhea.
• Enteroaggregative E. coli (EAEC).
• Enteroinvasive E. coli (EIEC).
• Enteropathogenic E. coli (EPIC).
• Diffusely adherent E. coli (DAEC).