This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enterobecteriaceae, Subject name: Microbiology
Most common cause of Traveller's diarrhoea : 
Select and explain. 
A. Enterotoxigenic E. coli, B. Enterohemorrhagia E. coli, C. Enteropathogenic E. coli, D. Enteroinvasive E. coli
A: Enterotoxigenic E. coli
Answer: A: Enterotoxigenic E. coli 
Explanation: Ans. is 'a' i.e. Enterotoxigenic E. coli Most common cause of traveller's diarrhoea - Enterotoxigenic E. coli Harrison states "The most frequently identified pathogen causing traveller's diarrhoea is toxigenic Escherichia coli." Most common cause of traveller's diarrhoea - Toxigenic E.coli Most common cause of traveller's diarrhea in - CampylobacterSouth East Asia and Africa Most common viruses associated with traveller's - Rotavirus and Norovirus diarrhea