Can you tell me are epec, ehec, etec, and eaec extra-intestinal pathogenic e coli?

E. coli. These are all different kinds of E. coli where the first E is always "entero" and the last two are always "E. coli." The second letter is what differs; hemorrhagic, toxigenic, etc. I'm not entirely sure what you mean by extra-intestinal E. coli though? E. coli are most commonly transmitted by a fecal-oral route as they reside in the intestine , but can infect other organs as well. .