<prompt> Most common cause of travellers diarrhea is -Enteropathogenic E. ColiEnterotoxigenic E. ColiSalmonella typhiShigella dysenteriae  <response>: Ans. is b i.e., Enterotoxigenic E. Coli o Most common cause of travellers diarrhea is Enterotoxigenic E. coli, followed by Enteroaggregative E. coli as 2nd most common cause.o Important causes of travellers diarrhea are:-1 Bacteria: ETEC most common, Enteroaggregative E. coli 2nd me, EIEC, shigella, salmonella, Campylobacter, V. cholerae.2 Viruses: Rotavirus, Norwalk like virus.3 Parasites: E. histolytica, Giardia lamblia, Cryptosporidium, Cyclospora. 