Cholera
A bacterial infection spread through contaminated water, causing severe diarrhoea. Rare in travellers but worth considering for aid workers or travel to areas with active outbreaks.
Dosing & timing
A single oral dose at least 10 days before travel. Not routinely recommended for most US travellers — careful food, water, and handwashing habits are the main protection.
Who should consider it
Travellers to destinations where CDC lists Choleraunder “recommended for most” or “recommended for some”. See the country list below for destinations on this site. Your travel doctor will tailor the decision to your itinerary, duration, and health.
Countries where CDC recommends this
Click any country for its full vaccine list.
Recommended for some travellers
Side effects and safety
Most travel vaccine reactions are mild — soreness at the injection site, low-grade fever, headache, or tiredness for a day or two. Serious reactions are rare. Learn more about vaccine safety on CDC.
Source: CDC — Cholera.
Disclaimer:This information is for general guidance only, based on CDC Travelers' Health. It does not replace advice from a qualified travel health professional. Consult a doctor 4–6 weeks before your trip.