Travellers' diarrhoea

Introduction 

Travellers’ diarrhoea is passing watery stools three or more times a day, either during, or shortly after, travelling. It usually lasts around 3-5 days.

Travellers’ diarrhoea is a common, but usually mild, illness that is spread through poor hygiene. Most cases of travellers’ diarrhoea are caused by bacteria that are passed from faeces (stools) to the mouth. This usually happens when someone does not wash their hands after going to the toilet, and then handles food that is eaten by travellers.

How common is travellers’ diarrhoea?

You are at risk of developing travellers’ diarrhoea if you travel anywhere, although the illness is most common in warm countries where standards of sanitation and hygiene are poor. This tends to be countries in the developing world, such as parts of Asia and Africa.

  • Around 30-50% of people travelling from a developed country to a developing country will experience an incident of travellers’ diarrhoea.
  • Around 8-15% of people visiting a medium risk country, such as Russia, will experience travellers’ diarrhoea.
  • Less than 4% of people visiting a low risk country, such as the USA, or Western Europe, will experience travellers’ diarrhoea.

Outlook

Travellers’ diarrhoea is usually mild, but it is unpleasant and can ruin a holiday. It often clears up without treatment, but it is essential to drink plenty of fluid. In more severe cases, a short course of antibiotics may be prescribed.  

Travellers’ diarrhoea may be more serious for people with pre-existing health conditions, such as an inflammatory bowel disease like Crohn’s disease. The very young, or very elderly, may also be more at risk of becoming dehydrated (when the normal water content of the body is reduced).

Last reviewed: 18/12/2009

Next review due: 18/12/2011

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