United States
Canada
Most countries in Northern and Western Europe
including the Scandinavian countries, Great Britain,
France, Spain, Austria, and Germany
New Zealand
Australia
Japan
Demographics
People of any age, race, or gender can get travel-
er’s diarrhea, although peak rates occur among trav-
elers in their twenties. There is no clear explanation of
why this group is more likely to get traveler’s diarrhea.
Some experts have suggested it this finding is related
more to the travel habits of young adults rather than
to any biological explanation. Traveler’s diarrhea is
more common in warm months and during the rainy
season than at other times of the year.
Although everyone gets traveler’s diarrhea, young
children, the elderly, pregnant women, and people with
weakened immune systems such as those with HIV/
AIDSoftenhavemoresevere and long-lasting cases
than other groups. People with inflammatory bowel syn-
drome, diabetes, and who are taking drugs that reduce
the acidity of the stomach (e.g. antacids, Tagamet, Prilo-
sec, Nexium) also are likely to have severe infections.
Causes and symptoms
Traveler’s diarrhea is a general term for nausea, vom-
iting, and diarrhea that many people develop when they
travel to areas where the sanitation and food preparation
KEY TERMS
Feces—waste from the bowels; stool
Areas of Risk for Travelers' Diarrhea
SOURCE: Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
Risk areas for
travelers’ diarrhea
Risk level
Low
Intermediate
High
(Illustration by GGS Information Services/Thomson Gale.)
Traveler’s diarrhea