Traveler's diarrhea occurs commonly when visitors from developed countries travel to developing countries. Over 50 million people are at risk for traveler's diarrhea
each year. Traveler's diarrhea can occur following the consumption of food or water contaminated with bacteria, viruses, or parasites. Bacteria such as Shigella, Salmonella, Campylobacter, and E. coli are responsible for 60% to 85% of the traveler s diarrhea cases 25 Noroviruses are being recognized increasingly as a significant cause of traveler's diarrhea as well26
Risky foods include tap water; uncooked foods, including seafood, fruits, and vegetables; and foods that are stored inadequately, particularly buffet-style meals. Additionally, alcohol consumption of more than five drinks per day has been demonstrated
to be a risk factor, especially in males. Education about the types of foods to avoid during travel can be an effective method of prevention.
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