Travelers' diarrhea

Uncommon card · No. 120672

Travelers' diarrhea (TD) is a stomach and intestinal infection experienced during travel to a new location as a result of lack of immunity to local food-borne pathogens. TD is defined as the passage of unformed stool (one or more by some definitions, three or more by others) while traveling. It may be accompanied by abdominal cramps, nausea, fever, headache, and bloating. Occasionally dysentery may occur. Most travelers recover within three to four days with little or no treatment. About 12% of people may have symptoms for a week. Bacteria are responsible for more than half of cases, typically via foodborne illness and waterborne diseases. The bacteria enterotoxigenic Escherichia coli (ETEC) are typically the most common except in Southeast Asia, where Campylobacter is more prominent. About 10 to 20 percent of cases are due to norovirus. Protozoa such as Giardia may cause longer-term disease. The risk is greatest in the first two weeks of travel and among young adults. People affected are...

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