There are no compulsory vaccinations for Cambodia required by law for travellers from Western Europe to gain entry but certain vaccinations are strongly recommended. 

For most short-term travellers the usual recommended vaccinations for Cambodia include cover against the childhood diseases (Tetanus and Diphtheria, Measles, Mumps and Rubella) as well as cover against the food and water borne diseases, including Typhoid and Hepatitis A. For those trekking or staying for longer periods cover against Hepatitis B and Rabies should also be considered. 

The recommended time to start your vaccines is four to six weeks before leaving home. However, those planning a longer visit, or where if the planned trip is likely to bring them to more rural parts of Cambodia, should book their consultation earlier to ensure that there is sufficient time to complete the vaccine courses. 

The risk of transmission of Malaria occurs in many regions of the country. Therefore, malaria prophylaxis may need to be considered, depending on your itinerary. 

The biggest risks for travellers to Cambodia tend to be associated with food and water borne diseases, mosquito bites and the traffic. Common-sense and care is needed at all times to ensure a good, safe holiday.