People heading overseas, particularly to developing countries, are often at risk of diseases endemic to the places they are visiting. The diseases are mainly associated with:

• Indadequate sanitation and hygiene and can lead to diseases such as Hepatitis A, Typhoid and Cholera, as well as traveller's diarrhoea.
• In the tropics, mosquitoes carry diseases such as Malaria, Yellow Fever, Dengue Fever and Japanese Encephalitis.
• Longer journeys or stays, particularly if backpacking or staying in budget accomodation, may involve other disease risk.