Prevention
Travellers who follow guidelines for eating and drinking safely are at a very low risk of contracting this disease. However an effective oral vaccine is available for those few people who may need protection.
Most at risk are those who travel to destinations where unsanitary conditions prevail and their source of drinking water may not be secure. This includes war-torn areas, refugee camps, or regions suffering the aftermath of natural disasters such as earthquakes or flooding.
In 1973 the World Health Organisation abolished the right of countries to require a certificate of vaccination against cholera. However, in rare cases immigration officials in some countries may still demand this certificate.