What Is Cholera?
Cholera is a serious bacterial infection caused by ingesting food or water contaminated with feces. It spreads rapidly in areas with poor sanitation and limited access to clean water. Globally, over 600 million people are at risk, with 3 to 5 million cases reported annually and more than 100,000 deaths. However, many cases go unreported.
Common Symptoms (Usually Appear Within 2–3 Days):
- Profuse, watery diarrhea (often described as “rice-water” stools)
- Vomiting
- Leg cramps
- Rapid fluid loss
- Severe dehydration
- Shock
While many cases are mild or even asymptomatic, cholera can still disrupt travel plans with sudden vomiting or diarrhea. In severe cases, a person can lose up to 1 liter of fluid per hour, and without treatment, the infection can be fatal within hours.
Who Is at Risk?
Cholera is primarily found in regions lacking clean water and modern sewage systems, especially in parts of Africa, Asia, and the Caribbean. You may be at risk if you:
- Drink untreated or contaminated water
- Eat raw or undercooked seafood (especially shellfish)
- Consume food handled by someone infected with cholera
Although the risk for most travelers is low, it increases for those visiting outbreak areas or working in humanitarian or disaster relief settings.
How to Prevent Cholera While Traveling
The best defense is prevention. Follow these key precautions:
- Drink only bottled, boiled, or treated water
- Avoid raw or undercooked seafood and street food
- Wash hands frequently with soap and clean water
- Use hand sanitizer when soap and water are unavailable
Healthcare providers may assess your risk based on:
- Destination and outbreak intensity
- Access to medical care
- Personal health conditions (e.g., kidney disease, heart conditions)
- Ability to follow food and water safety guidelines
What Is the Cholera Vaccine (Vaxchora)?
Vaxchora is the only cholera vaccine currently approved in the United States. It protects against Vibrio cholerae serogroup O1, the most common strain responsible for outbreaks.
Key Facts About Vaxchora:
- Type: Live, attenuated oral vaccine
- Age Range: Approved for adults 18 to 64 years old
- Use: Recommended for travelers heading to cholera-affected areas
- How It Works: The vaccine contains a weakened form of the cholera bacteria that cannot cause illness. It stimulates the immune system to build protection against the real infection.
Final Thoughts
While cholera is rare among most travelers, it can be life-threatening. If you're heading to a high-risk area, talk to your healthcare provider about whether the Vaxchora vaccine is right for you. Combine vaccination with safe food and water practices to stay healthy and enjoy your journey.
