Travel Vaccination

Japanese Encephalitis Vaccine

Protection against a mosquito-borne virus found across rural Asia and the Western Pacific.

What is Japanese encephalitis, and where is it found?

Japanese encephalitis is a viral infection spread by mosquitoes, most commonly found around rice paddies and pig farming areas. Most infections are mild or symptom-free, but in rare cases the virus can cause serious inflammation of the brain.

Risk is concentrated in rural farming regions across parts of Asia and the Western Pacific, and tends to rise during the rainy or monsoon season when mosquito numbers increase.

Who should consider this vaccine?

Long-stay or repeat travellers to rural Asia

Spending a month or more in or around farming communities.

Those travelling during rainy season

When mosquito activity, and therefore risk, tends to be higher.

Travellers visiting agricultural areas

Including rice paddies and pig farming regions specifically.

Extended backpacking routes

Covering multiple rural destinations across an endemic region.

The vaccine at a glance

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Two-Dose Course

The primary course is given as two doses.

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Rapid Option Available

An accelerated schedule can suit last-minute travel plans.

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Good for Repeat Trips

A booster can extend protection for future travel.

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Works Alongside Bite Prevention

Best combined with mosquito repellent, nets, and covering up.

Building your protection: what to expect

1. Book a consultation and itinerary review

We'll assess how much time you'll spend in rural or farming areas.

2. Receive your first dose

Timed to allow the second dose before you travel.

3. Receive your second dose

Completing the primary course.

4. Travel with confidence

Aim to finish the course at least a week before departure.

Questions about the Japanese encephalitis vaccine

Do I need this for a short city break?

Usually not. It's mainly recommended for rural, agricultural, or extended stays in endemic areas.

Do I still need mosquito bite prevention?

Yes. The vaccine works best alongside repellent, covering up, and sleeping under nets, not instead of them.

Can I get a booster for a future trip?

Yes, a booster dose is available for travellers returning to endemic areas.

Is it suitable for children?

This is assessed individually, so please mention your child's age and travel plans during the consultation.

Ready to plan your rural itinerary safely?

Book your consultation or vaccine appointment in a couple of minutes.