Kids running outside with pool floaties on vacation

The Facts on Diarrhea when Travelling

CDHF

Written by: CDHF

Updated: November 30th, 2022

It’s that time of year again. You’re sick of the snow and ready to escape to a beach somewhere near the equator!  If you’re anything like me, you’ve already started planning, and are probably thinking about the essential steps… booking your travel and accommodation, packing the right clothes, ensuring you have enough spending money, planning excursions, etc. However, you should add chatting with your healthcare professional for pre-travel health advice to your to-do list! 

The majority of Canadians are not as travel-savvy as they should be when it comes to the potential causes, symptoms and risks of a gastrointestinal infection. According to the US Centers for Disease Control and Prevention, approximately 30-70% of travelers may experience travelers’ diarrhea while on vacation. If you’ve had diarrhea during travel before – you know this is NOT how you want to be spending your time on vacay!

What are the risk factors? 

The most detrimental risk factor for the development of travelers’ diarrhea is the destination. Developing countries all over the world represent the highest risk of diarrheal disease. Those being the Caribbean, Latin America, Africa, the Middle East, and Asia.

Travelers’ diarrhea is typically contracted by ingesting bacteria-contaminated food or water, with food being the primary cause.  Approximately 80% of reported cases of travelers’ diarrhea are caused by bacteria, specifically Escherichia coli (E. coli).  

There are six unique classes of E. coli that can cause inflammation of the stomach and bowels and are termed enterovirulent E. coli (EEC).  Brace yourself, you may not be able to pronounce these classes, but it doesn’t mean you won’t get them! They include:  

  1. Enterotoxigenic E. coli (ETEC) is the one that causes most travelers’ diarrhea and produces a toxin that acts on the intestinal lining.
  2. Enteroinvasive E. coli (EIEC) invades (passes into) the intestinal wall to produce severe diarrhea.
  3. Enterohemorrhagic E. coli (EHEC) can cause bloody diarrhea and hemolytic uremic syndrome (anemia and kidney failure).
  4. Enteropathogenic E. coli (EPEC) can cause diarrhea outbreaks in newborn nurseries.
  5. Enteroinvasive E. coli (EIEC) invade the epithelial cells causing diarrhea with mucus and blood.
  6. Enteroaggregative E. coli (EAggEC) can cause acute and chronic (long-lasting) diarrhea.

The most common bacterium that causes diarrhea in travelers is enterotoxigenic E. coli (ETEC).  

Symptoms and Complications 

Diarrhea in travelers is characterized by a sudden onset of not-so-pleasant symptoms including: 

These symptoms can occur 1-3 days after ingesting contaminated food or water. The effects of diarrhea during travel can be very serious, especially for children and older adults. Rehydration measures must be taken in case of diarrhea.

Which travelers are at risk for diarrhea during travel? 

Men and women are at equal risk for developing diarrhea during travel, but some individuals are more commonly afflicted. 

Certain groups of people are also more likely to develop diarrhea during travel.  

At-risk groups include:

How to reduce the risk of diarrhea during travel, you ask? 

You should pay close attention to diet as it is of foremost importance in the prevention of travelers’ diarrhea. We’ve compiled a list of things to keep in mind while on vacation: 

Knowing how to manage food and water intake, and personal hygiene, is so important while on vacation. Before you head on vacation, sit down with your health care professional to discuss preventative measures. These may include: 

DUKORAL® is used to help prevent diarrhea caused by heat-labile toxin (LT)-producing enterotoxigenic E. coli in adults and children two years of age and older who will be visiting areas where there is a risk of contracting diarrhea caused by (LT)-producing ETEC. 

The Canadian Digestive Health Foundation (CDHF) recommends considering DUKORAL® as an option to prevent LT-producing ETEC diarrhea during travel. There are multiple causes responsible for acute diarrhea in travelers. DUKORAL® can only confer protection against LT-producing ETEC. Therefore, DUKORAL® does not replace standard hygienic measures and food and water precautions. Like any vaccines, DUKORAL® may not protect 100% of people who receive it and may cause side effects. Talk to your doctor to see if DUKORAL® is right for you. 

Learn more

If you are interested in learning more about Dukoral®, please visit Dukoral Canada.

Are you a healthcare professional? Order resources for your office/clinic here.

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