Travelers' diarrhea is the most common travel-related infection. It may be caused by many different organisms, including bacteria. In addition to diarrhea, symptoms may include nausea, vomiting, abdominal pain, fever, sweats, chills, headache, and malaise. The chief complication is dehydration, which may become severe, especially in warmer climes. In Australia number of new cases of Travelers' diarrhea diagnosed in 2015 is 300 (167 males; 133 females). Attack rates range from 30% to 70% of travelers, depending on the destination and season of travel.
Poor hygiene practice in local restaurants is likely the largest contributor to the risk for TD. Antibiotics are the principal element in the treatment of TD and are effective in cases caused by bacterial pathogens that are susceptible to the particular antibiotic prescribed. Adjunctive agents used for symptomatic control may also be recommended. Further research is being conducted to determine the best surveillance interval to monitor these stools.