Cramping abdominal pain, lack of appetite, and diarrhea are the main complaints. In approximately 10% of patients, diarrhea turns bloody. Fever develops in about half of them.
Traveler's diarrhea is an illness due to infection from a bacteria or parasite that occurs in persons traveling to areas where there is a high frequency of the illness.
Symptoms usually start within a few days after arrival, but can be delayed for as long as two weeks. Illness lasts an average of 3 to 5 days, but is sometimes longer.