<prompt> Travellers diarrhoea is most commonly caused byETECS. dysenteriaeEPECSalmonella  <response>: Five types of E.coli include:1. ETEC enterotoxogenic E.coli2. EIEC enteroinvasive E.coli3. EPEC enteropathogenic E.coli4. EHEC enterohemorrhagic E.coli5. EAEC enteroaggregative E.coli Travellers diarrhoea is most commonly caused by enterotoxogenic E.coli and then the other common organism responsible is S. dysenteriae. Intestinal Pathogenic E. Coli. 