This site is currently implementing core features and is not ready for patient use yet.
This site is currently implementing core features and is not ready for patient use yet.
For informational purposes only — not medical advice
Get a free vaccination guide and nearby clinic recommendations — straight to your inbox.
How serious?
Risk of death
Yes
Vaccine available?
Time to symptoms
Countries affected
Active outbreaks
Cholera risk for travelers is generally very low (<0.001%). Risk increases in disaster/outbreak areas. Oral cholera vaccine is available for high-risk travel. Always drink treated/bottled water and avoid raw seafood in endemic areas.
An acute intestinal infection mainly spread through contaminated water or food. Rapid rehydration is key.
Symptoms | Frequency | Severity | Onset |
|---|---|---|---|
| Diarrhea | 98% | Severe | Early |
| Dehydration | 90% | Critical | Early |
| Vomiting | 80% | Moderate | Early |
| Abdominal cramps | 45% | Mild | Early |
| Loss of appetite | 55% | Mild | Early |
| Malaise | 50% | Mild | Early |
| Nausea | 65% | Mild | Early |
| Fever | 10% | Mild | Early |
| Hypotension | 40% | Severe | Peak |
| Oliguria | 50% | Moderate | Peak |
| Tachycardia | 75% | Moderate | Peak |
| Fatigue | 70% | Mild | Peak |
| Shock | 15% | Critical | Peak |
| Irritability | 30% | Mild | Peak |
| Seizures | 5% | Severe | Peak |
| Altered consciousness | 8% | Severe | Late |
| Confusion | 10% | Moderate | Late |
Cholera risk can be significantly reduced with safe water, food hygiene, and hand hygiene. In higher‑risk travel scenarios, vaccination may be considered after a travel‑medicine consultation.
Cholera is an acute intestinal infection caused by the bacterium Vibrio cholerae. Infection most often occurs after consuming contaminated water or food. Many cases are mild, but severe watery diarrhea can develop and lead to dehydration.\n\nThe most important step is prompt fluid replacement. For travelers, risk is higher in settings with limited access to safe water and sanitation.
Most common signs and symptoms
Cholera primarily affects the gut and fluid/electrolyte balance.\n\n- watery diarrhea\n- nausea and vomiting\n- muscle cramps (due to electrolyte loss)\n- intense thirst, dry mouth\n- weakness, dizziness
Knowing the symptoms is the first step to a quick response.
Incubation is usually short (days). Illness can be mild or progress quickly—severe dehydration requires urgent medical care.
How this disease is identified
Diagnosis is guided by symptoms and exposure history (including travel) and can be confirmed with laboratory testing of stool samples.
Available treatment methods
Treatment focuses on rapid rehydration (oral rehydration salts or, in more severe cases, intravenous fluids) and electrolyte replacement. Antibiotics may be used in selected situations as decided by a clinician. Anti‑diarrheal medicines are not always appropriate—seek medical advice if unsure.
Most cases are effectively treated with early diagnosis.
How to protect yourself
Preparation is the best protection.
Statistics and geographic data
Cholera occurs in outbreaks in multiple regions, especially where safe water and sanitation are limited. Travel risk depends on destination, local hygiene standards, and current public‑health situation.
Who is most at risk
Higher risk is associated with unsafe drinking water, raw foods, travel to areas with limited sanitation, humanitarian work, and crisis settings (e.g., after natural disasters).
Potential complications
Complications are mainly related to dehydration and electrolyte imbalance. Untreated severe dehydration can lead to shock and organ failure.
Expected outcomes and recovery
With timely rehydration, outcomes are usually good. Delayed treatment increases the risk of complications in severe dehydration.
This disease is vaccine-preventable. Effective protection is available through vaccination.
Talk to a travel health specialist about the recommended schedule before your trip.
Find a vaccination clinic →The content on this page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. If you have health concerns, consult a qualified healthcare professional. Medova is not a medical service provider.
Full terms of useGeographic distribution and active outbreaks
Recent epidemiological data from the World Health Organization Global Health Observatory.
Source: WHO GHO OData ↗
This data is provided for informational purposes. Please consult official WHO sources for the most current information.
View WHO data source →| Flag | Country | Risk level |
|---|---|---|
 | Ethiopia | High risk |
 | Zimbabwe | High risk |
 | Haiti | High risk |
 | Somalia | High risk |
 | Bangladesh | High risk |
 | Mozambique | High risk |
 | Afghanistan | High risk |
 | Sudan | High risk |
 | Nigeria | High risk |
 | Zambia | High risk |
Know which vaccine you need? Great. Not sure? Just tell us your destination — we will figure it out and match you with a clinic. Free, no obligation.
A comprehensive health guide for East Africa travel covering Kenya, Tanzania, and Uganda. Includes yellow fever requirements, malaria prevention, safari health tips, and recommended vaccines for a safe trip.
A comprehensive health guide for travelers to India. Covers recommended vaccines, food and water safety, monsoon-season risks, malaria zones, and what to pack in your travel health kit.
A practical guide to food and water safety for travelers: safe choices, risky foods, street food strategies, regional risk zones, and when to see a doctor.
The complete guide to traveler's diarrhea: how to prevent it, self-treat with ORS and antibiotics, and recognize warning signs that need medical attention.
How to avoid foodborne and waterborne illnesses abroad: safe eating practices, water purification, oral rehydration, and when to seek medical help.