Traveler’s diarrhea may be caused by any of several bacteria, viruses, or, less commonly, parasites. However, E. coli is common in the water supplies of areas that lack adequate purification. Infection is common among people traveling to developing countries. Traveler's diarrhea affects individuals around 2,215,834 per year in Britain (United Kingdom).
The mainstay of treatment is fluid replacement and an antimotility drug such as loperamide 4 mg po initially, followed by 2 mg po for each subsequent episode of diarrhea qid in tablet or liquid form may reduce the Traveler's diarrhea. TD continues to be a worldwide disease that affects millions of tourists. Constant developments in prevention and discovery of new pathogens responsible for TD continually change our understanding of the disease. Antibacterial agents are remarkably effective for TD therapy.