Cholera prevention for travelers

Cholera is a serious diarrheal illness caused by a bacterium called Vibrio cholerae. It spreads through contaminated food and water, making it a real concern for travelers heading to parts of Africa, Asia, and other regions where clean water and sanitation are limited. US travelers who visit areas with active outbreaks or who work in humanitarian settings face the highest risk.

How to prevent cholera

The most effective way to prevent cholera is to combine vaccination with careful food and water habits. The oral cholera vaccine Vaxchora (also known by its strain name CVD 103-HgR) is the only cholera vaccine approved in the United States. According to research published in PMC, the Advisory Committee on Immunization Practices (ACIP) recommends this vaccine for travelers aged 2 to 64 who are visiting areas with active cholera transmission. Studies show it provides 62% to 100% protection against cholera, per NIH research.

Beyond vaccination, behavioral precautions matter a great deal. Only drink bottled or boiled water. Avoid ice made from tap water. Eat only cooked foods that are served hot, and avoid raw shellfish, salads, and street food in high-risk areas. The WHO notes that access to safe water and basic sanitation is the foundation of cholera prevention. Wash your hands frequently with soap and clean water, especially before eating and after using the restroom. A WayPax provider can help you decide whether the vaccine is right for your specific trip.

WayPax Health recommendation

WayPax Health offers Vaxchora, the oral live cholera vaccine, for travelers heading to cholera-affected regions. This vaccine is especially relevant for adventure travelers, backpackers, humanitarian aid workers, and anyone planning an extended stay in areas with limited access to clean water or sanitation. A WayPax provider will review your full itinerary, discuss your risk level, and issue a real prescription online without you ever needing to step into a clinic. This is the same level of personalized travel health care you would get at a traditional travel clinic, done entirely from your phone or computer. Do not wait until the week before your flight. Get protected now so you can travel with confidence.

Get your Cholera prescription and other travel medicines online today.

What is cholera?

Cholera is an acute (sudden-onset) diarrheal infection caused by the bacterium Vibrio cholerae. A person gets infected by swallowing food or water that has been contaminated with the bacteria, usually through poor sanitation. According to the WHO, symptoms appear between 12 hours and 5 days after exposure. Most people who are infected have mild or no symptoms. However, a small number develop severe watery diarrhea, sometimes described as "rice-water" stools, along with vomiting and rapid dehydration (loss of fluids from the body). Without treatment, severe dehydration can be fatal within hours. The CDC notes that infected people can spread the bacteria through their stool for 1 to 10 days, even if they feel fine. Research published in PMC confirms that rapid rehydration is the cornerstone of managing cholera in travelers. Recognizing symptoms early and acting fast is key to a good outcome.

Where is cholera a risk?

Cholera circulates in many parts of the world where access to clean water and proper sanitation is limited. According to the WHO, the disease is considered a global public health threat and is closely tied to poverty and lack of basic infrastructure. Sub-Saharan Africa carries the heaviest burden of cholera globally, with outbreaks occurring across a wide band of countries in both East and West Africa. Conflict zones and areas affected by natural disasters face particularly high risk because these events often destroy water and sanitation systems.

South and Southeast Asia also see ongoing cholera transmission, particularly in densely populated areas with inadequate sewage treatment. Parts of the Middle East, especially regions affected by ongoing conflict, have experienced significant outbreaks in recent years. The Americas have seen periodic outbreaks as well, particularly in areas of Haiti and other Caribbean and Central American countries where water infrastructure is fragile. Transmission risk tends to be higher during rainy seasons when flooding can contaminate water supplies. Travelers who venture off the typical tourist path, stay in local accommodations, or work in humanitarian settings face the greatest exposure risk.

Treatment: what to do if you get cholera

The most important treatment for cholera is replacing lost fluids as quickly as possible. Oral rehydration solution (ORS), a mixture of water, salts, and sugar, is the first-line treatment for mild to moderate cases. Per NIH research on cholera in travelers, current recommendations include rehydration therapy and antibiotics for confirmed or probable cholera cases. Severe cases require intravenous (IV) fluids given in a medical facility. Warning signs that require immediate medical attention include extreme weakness, sunken eyes, inability to keep fluids down, very little or no urination, and rapid heart rate. If you develop profuse watery diarrhea while traveling in a cholera-affected area, seek medical care right away. Do not wait to see if symptoms improve on their own. A WayPax provider can help you plan ahead so you know exactly what to do if you become ill during your trip.

Frequently asked questions

What are the symptoms of cholera in travelers?

Most travelers who are exposed to cholera have mild or no symptoms at all. Those who do get sick typically experience sudden, profuse watery diarrhea, vomiting, and muscle cramps. In severe cases, the fluid loss can be so rapid that dehydration becomes life-threatening within hours, so starting treatment quickly is important.

How can I prevent cholera when traveling?

The two main ways to prevent cholera are vaccination and safe food and water habits. Get the Vaxchora oral vaccine before your trip if you are traveling to a high-risk area. While abroad, only drink bottled or boiled water, avoid ice from unknown sources, and stick to hot, fully cooked foods. Frequent handwashing with soap and clean water also helps reduce your risk significantly.

Is there a cholera vaccine for travel?

Yes. Vaxchora is the only oral cholera vaccine approved in the United States. It is a single-dose oral vaccine recommended for travelers aged 2 to 64 who are visiting areas with active cholera transmission. The CDC Yellow Book recommends it for both adult and pediatric travelers going to affected regions. WayPax Health providers can prescribe Vaxchora entirely online, so you can get protected without visiting a clinic in person.

Where is cholera a risk for travelers?

Cholera is most common in parts of sub-Saharan Africa, South and Southeast Asia, and areas affected by conflict or natural disasters where clean water is scarce. The WHO estimates there are 1.3 to 4.0 million cases worldwide each year. Travelers who stay in local communities, work in humanitarian settings, or visit areas with limited sanitation face the highest risk.

Can you get cholera from food or water abroad?

Yes. Cholera spreads almost entirely through contaminated food and water. Eating raw shellfish, drinking untreated water, or consuming food prepared with contaminated water are the most common ways travelers get infected. Choosing bottled or boiled water and eating fully cooked, hot foods are your best defenses while traveling in affected regions.

How is cholera treated?

Mild to moderate cholera is treated with oral rehydration solution, which replaces the fluids and salts lost through diarrhea. Severe cases require IV fluids and antibiotics given in a hospital or clinic. Research in PMC confirms that starting rehydration quickly is the most important step. If you develop severe watery diarrhea while traveling, seek medical care immediately rather than waiting to see if it passes.

Is there a cholera travel warning I should know about?

The CDC and WHO regularly update cholera outbreak alerts for specific countries and regions. Before any international trip, check the CDC Travelers' Health notices and the WHO Disease Outbreak News for the latest information on your destination. WayPax Health providers stay current on active outbreaks and can give you personalized guidance based on your exact itinerary during an online consultation.

Explore by region

Africa

• Nigeria
• Democratic Republic of the Congo
• Somalia
• Sudan
• Chad
• Ethiopia
• Uganda
• Ghana
• Angola
• Burundi
• Congo
• Central African Republic
• Djibouti
• Eritrea
• Togo
• Comoros
• Equatorial Guinea
• Gabon

Middle East

• Yemen
• Syria
• Lebanon
• Libya

South Asia

• Bangladesh
• Sri Lanka

Americas and Caribbean

• Cuba
• Colombia
• Ecuador
• Peru
• Bolivia
• El Salvador
• Saint Lucia

Related diseases

• Typhoid fever (spread through contaminated food and water in many of the same regions)
• Hepatitis A (fecal-oral transmission, common in areas with poor sanitation)
• Travelers' diarrhea (the most common waterborne illness affecting international travelers)
• Malaria (co-endemic in many sub-Saharan African and South Asian countries where cholera circulates)
• Poliomyelitis (shares fecal-oral transmission routes and overlapping geographic risk zones)