Cholera risk in Siem Reap
Prevention Guide
Cholera is an acute diarrheal infection caused by the bacterium Vibrio cholerae, often spread through contaminated water and food. Symptoms include profuse watery diarrhea, vomiting, and rapid dehydration. Without treatment, severe cases can be life-threatening.
In Siem Reap, the risk score of 65/100 reflects several local factors: seasonal flooding, especially during the monsoon months, can contaminate water supplies; street food vendors may use untreated water for washing and cooking; ice from unknown sources is common in drinks; and sanitation infrastructure in some areas remains limited, particularly in peri-urban and rural communities around the city.
To reduce your risk while in Siem Reap, follow these steps:
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Drink only bottled or boiled water. If you must use tap water, boil it for at least one minute or treat it with chlorine tablets before drinking. Avoid ice in drinks unless you are certain it was made from purified water.
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Eat freshly cooked, hot food. Avoid raw or undercooked seafood, salads washed in tap water, and food from stalls where hygiene standards are unclear. Stick to busy vendors with high turnover.
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Wash your hands frequently with soap and clean water, especially before eating and after using the toilet. Carry alcohol-based hand sanitizer as a backup.
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Consider oral cholera vaccination before travel if you plan extended stays or will be in areas with limited medical access.
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Know where the nearest medical facilities are, such as Royal Angkor International Hospital, and seek immediate medical attention if you develop severe diarrhea or signs of dehydration.
By staying vigilant about water, food, and hygiene, you can significantly reduce your cholera risk while enjoying Siem Reap.
Last updated: Mon, 29 Jun 2026 19:59:56 GMT