Traveler's Diarrhea Topic Guide

Diarrhea can be caused by bacterial or viral infections, parasites, intestinal diseases or conditions, reactions to medications, and food intolerance or allergies. Symptoms of diarrhea include watery stools, abdominal cramping, fever, and dehydration. Most cases of diarrhea can be treated at home. In some cases (in the elderly, small children, or those with severe or chronic medical conditions) may need to be hospitalized due to dehydration.

GI complications are common in cancer patients. Complications are medical problems that occur during a disease, or after a procedure or treatment. They may be caused by the disease, procedure, or treatment, or may have other causes. Problems may include constipation, fecal impaction, bowel obstruction, diarrhea, or radiation enteritis.

Diarrhea is an increase in the frequency of bowel movements, an increase in the looseness of stool, or both. Symptoms associated with diarrhea include abdominal pain, especially cramping. Other symptoms depend on the cause of the diarrhea. Loose stools describes stool consistency of your bowel movement like soft, runny, explosive, or hard. Stool color changes may vary from green, yellow, black, and tarry. Treatment for diarrhea and loose stools depend on the causes.

Food poisoning is a general term that refers to gastrointestinal illnesses (usually diarrhea and/or vomiting) caused by food that is contaminated with bacteria, parasites, viruses, or toxic substances.

A fever is a body temperature of 100.4 F or greater. A fever may be caused by a virus, bacteria, fungus, blood clot, tumor, drug, or the environment. Treatment of fever in adults usually involves ibuprofen, acetaminophen, or aspirin.

It is important to plan well in advance when traveling to a foreign country. Travelers should protect (and prepare) themselves from illness by obtaining the appropriate vaccinations and bringing along a traveler's medical kit that contains: prescription medications, first aid supplies, sanitary napkins/tampons (for women), sunscreen, insect repellents, motion sickness medication, pain remedies, cold remedies, and foot care products.

Gastroenteritis (stomach flu) is most commonly caused by viruses and bacteria like Norovirus, rotavirus, adenovirus, parvovirus, and Astrovirus. Bacteria causing gastroenteritis include Staphylococcus aureus, E. coli, salmonella, shigella, Campylobacter, and C. difficile. Other causes may be due to chemical toxins. The stomach flu is contagious because it caused by bacteria, viruses, or fungi. You get the stomach flu from contaminated food and drinks from poor hygiene (not washing your hands after using the toilet). Common symptoms of the stomach flu are; mild to moderate diarrhea, abdominal cramping, abdominal bloating,and low grade fever. Home remedies to treat the stomach flu include rest and hydration to avoid dehydration. Over-the-counter or prescription medicine may be necessary to treat the signs and symptoms of the stomach flu (gastroenteritis). The stomach flu can be prevented by using proper hygiene when using the bathroom.

Giardiasis is an infection of the small bowel caused by Giardia lamblia. It is the most common intestinal parasitic disease in the U.S. Causes of giardiasis include contaminated water and food supplies, and person to person contact. Symptoms of giardiasis include diarrhea, weight loss, bloating, gas, constipation, nausea, vomiting, rash, and fever. Treatment of giardiasis is generally with antibiotics.

Most immunizations are not required under International Health Requirements but are recommended. Anyone lacking certain region- or country-specific immunizations may be denied entry into or exit from a country.