Overview
Malaria in Cambodia is moderate in parts of the east and south-west (Pursat Province), low in the rest of the country including Siem Reap and the Angkor temples, and absent in Phnom Penh. Dengue, chikungunya and zika remain the more common mosquito risks, and Japanese encephalitis circulates year-round with a peak from May to October.
Recommended vaccines
Malaria by region
Bite protection is advised everywhere; preventive tablets are considered for higher-risk travellers in the moderate-risk east and south-west. If fever develops during or after the trip, get tested for malaria promptly.
Malaria risk is limited to certain regions, shown below.
The east and south-west of the country (Pursat Province): a moderate risk, the highest documented for the country. Bite protection advised, with tablets for higher-risk travellers.
The rest of the country, including Siem Reap and the Angkor temples: a lower risk, where bite protection is enough.
Phnom Penh.
Other health risks
Prepare your trip
Leaving in under 2 weeks? Still book a clinic: a first hepatitis A dose already protects, and yellow fever needs at least 10 days. A travel clinic will prioritise what fits your timeline.
Frequently asked questions
Is any vaccine required for Cambodia?
No vaccine is required if you arrive directly from Belgium. Yellow fever is only asked for if you come from (or transit through) a country where it circulates.
Is there a malaria risk?
Malaria: risk limited to certain regions. Bite protection is advised everywhere; preventive tablets are considered for higher-risk travellers in the moderate-risk east and south-west. If fever develops during or after the trip, get tested for malaria promptly.
How far ahead of departure should I start?
Ideally 6 to 8 weeks before departure, to complete multi-dose schedules. Yellow fever, where it applies, must be given at least 10 days before arrival.
Our sources
Indicative information for a typical traveller, not medical advice. What you need depends on your itinerary, region, season and duration. See an approved travel clinic 6–8 weeks before departure: only they can give yellow fever and issue the certificate.