Where it’s common: Developing countries including Central and South America, Mexico, the Middle East, Asia and Africa.
Where it’s common: The most common traveller’s illness largely affects infants, the elderly and those who are immunosuppressed. Consuming contaminated food or drink can lead to an urgent need to use the bathroom, bloating, nausea, dehydration and death if not treated immediately with antibiotics or fluids. As a rule of thumb, boil water or drink from packaged water bottles, even when brushing teeth. You would also be wise to carry hand sanitizer with an alcohol base of at least 60 per cent so as to avoid washing hands with contaminated water.