Traveller's diarrhea . Entero invasive E. coli (ETEC) Diarrhea to dysentry similar to shigellosis . Enterohemorrhagic E. coli (EHEC) --> Hemolytic uremic syndrome, Hemorrhagic colitis . Enteroaggregative E.coli --> Persistant diarrhea . Extraintestinal pathogenic strains --> UTI, Abdominal & pelvic infections, meningitis, Septicemia.">