Factors that influence traveller’s Diarrhoea
Place of origin. Travellers from developed countries are more likely to have traveller’s diarrhoea.
Destination. The greater the levels of poverty, the greater the incidence of traveller’s diarrhoea. Therefore, the highest-risk destinations are Africa, South East Asia and Latin America.
Duration of the trip. The longer the trip, the higher the risk.
Type of trip. Beach holidays at a tourist resort have a lower incidence than organised group tours or adventure tourism, which are associated with a higher rate of traveller’s diarrhoea.
Type of hotel. This relates to the establishment’s hygiene conditions, as well as the type of food chosen and the place it is consumed.
Season of the year. More frequent in warm periods.
Traveller’s characteristics. Children, young adults (15-30), elderly people, pregnant women, people with diabetes, HIV, those undergoing oncological/steroid treatment, those who have inflammatory bowel disease or have had gastric surgery are more likely to experience traveller’s diarrhoea.
Causes of traveller’s Diarrhoea
Bacterial, viral or parasitical infection. These infections can occur anywhere in the world. There are many causative microorganisms, and they probably differ from one country to another. The most common pathogens are Escherichia coli, Shigella, Salmonella, Campylobacter, Rotavirus and Giardia lamblia.
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