Travelers' diarrhea

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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Travelers' diarrhea
Escherichia coli at 10,000x magnification
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Diarrhea, abdominal cramps, nausea, vomiting
Complications	Dehydration, electrolyte imbalance
Onset	1–3 days after exposure
Duration	3–5 days
Types	N/A
Causes	Bacteria, viruses, parasites
Risks	Travel to developing countries
Diagnosis	Clinical diagnosis, stool culture
Differential diagnosis	Food poisoning, gastroenteritis, irritable bowel syndrome
Prevention	Safe drinking water, proper food handling, vaccination
Treatment	Oral rehydration therapy, antibiotics, antimotility agents
Medication	N/A
Prognosis	N/A
Frequency	Affects 20–50% of international travelers
Deaths	N/A

Travelers' diarrhea is a common ailment affecting travelers, typically caused by the ingestion of contaminated food or water. It is characterized by an increase in the frequency of bowel movements and the passage of unformed stool. The condition is often accompanied by abdominal cramps, nausea, and bloating.

Causes

The primary cause of travelers' diarrhea is the ingestion of bacteria, viruses, or parasites that contaminate food and water. The most common bacterial pathogen responsible for travelers' diarrhea is Escherichia coli, particularly the enterotoxigenic strain (ETEC). Other bacterial causes include Salmonella, Shigella, and Campylobacter.

Bacterial

- Escherichia coli (ETEC) - Salmonella - Shigella - Campylobacter

Viral

- Norovirus - Rotavirus

Parasitic

- Giardia lamblia - Entamoeba histolytica - Cryptosporidium

Symptoms

Symptoms of travelers' diarrhea typically begin abruptly during travel or shortly after returning home. Common symptoms include: - Frequent, loose stools - Abdominal cramps - Nausea - Vomiting - Fever - Bloating

Prevention

Preventive measures include: - Drinking bottled or boiled water - Avoiding ice cubes - Eating well-cooked food - Avoiding raw fruits and vegetables unless peeled - Practicing good hand hygiene

Treatment

Treatment for travelers' diarrhea focuses on maintaining hydration and electrolyte balance. Oral rehydration solutions are recommended. In some cases, antibiotics may be prescribed to reduce the duration of symptoms. Over-the-counter medications such as loperamide can be used to manage symptoms, but should be used with caution.

See also

- Diarrhea - Escherichia coli - Gastroenteritis - Foodborne illness