Japanese Encephalitis
A mosquito-borne virus affecting the brain, found in rural parts of Asia. Risk is highest during rice-paddy season in rural areas.
Dosing & timing
Two doses 28 days apart. Adults 18–65 can use an accelerated 0 and 7 days schedule. Complete the second dose at least a week before travel.
Who should consider it
Travellers to destinations where CDC lists Japanese Encephalitisunder “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 — Japanese Encephalitis.
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.