What is the difference between travelers diarrhea n diarrhea?

Travellers dirrhea. Travellers diarrhea is caused when you are travlling to countries where the water supply is contaminated with e coli, and if you drink water which is not boiled you may get diarrhea, thats the most common cause of travllers diarrhea, but other bacteria as well as e coli, shigela, salmonella , giardia and ameba from contaminated food can cause it.Dirrhea here is mosly caused by viruses rarely others.