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Location: Home > Information Center > FAQs > What are the different strains of E. coli?

What are the different strains of E. coli?

Date: 2020-08-10 Author: Leading Biology Click: 538

Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part of a healthy human intestinal tract. However, some E. coli are pathogenic, meaning they can cause illness, either diarrhea or illness outside of the intestinal tract. The types of E. coli that can cause diarrhea can be transmitted through contaminated water or food, or through contact with animals or persons.

 

E. coli consists of a diverse group of bacteria. Pathogenic E. coli strains are categorized into pathotypes. Six pathotypes are associated with diarrhea and collectively are referred to as diarrheagenic E. coli.

 

Shiga toxin-producing E. coli (STEC)STEC may also be referred to as Verocytotoxin-producing E. coli (VTEC) or enterohemorrhagic E. coli (EHEC). This pathotype is the one most commonly heard about in the news in association with foodborne outbreaks.


Enterotoxigenic E. coli (ETEC)

Enteropathogenic E. coli (EPEC)

Enteroaggregative E. coli (EAEC)

Enteroinvasive E. coli (EIEC)

Diffusely adherent E. coli (DAEC)

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