The Japanese encephalitis vaccine is available at all our Edinburgh branches for travellers heading to parts of Asia and the Western Pacific where the virus is present, particularly if your trip is longer, more rural, or involves outdoor evening activity. Most adults have two doses, either 28 days or just seven days apart if time is short. It isn't one of the travel vaccines funded on the NHS in Scotland, so this page covers who typically needs it, the schedule options, and other mosquito bite precautions worth taking alongside it.
Who is usually advised to have the Japanese encephalitis vaccine?
Japanese encephalitis is spread by mosquitoes that are most active from dusk to dawn and are common in rural areas where rice farming and pig farming take place, though they can also be found in peri-urban locations. NaTHNaC states the overall risk to most travellers to Asia is very low, especially for short trips to urban areas, and is estimated at less than one case per million travellers from non-affected countries. Risk rises for people staying for long periods in risk areas, visiting rural locations, or taking part in activities with significant outdoor, rural or night-time exposure, such as fieldwork or camping, even on a shorter trip.
Your pharmacist will ask about your specific itinerary, accommodation and planned activities to work out whether vaccination makes sense, rather than recommending it for every visit to an affected country.
Most human infections cause no symptoms at all, or a mild illness such as fever and headache. The reason vaccination is still worth taking seriously for higher-risk trips is that the small number of cases that do become severe carry a high risk of complications and, in hospitalised cases, a high death rate, with neurological effects common in survivors. This is quite different from many travel illnesses that are unpleasant but rarely dangerous, which is part of why destination and activity detail matter so much for the recommendation.
Do I really need the Japanese encephalitis vaccine?
For most short holidays in cities and tourist resorts, the individual risk is very low and the vaccine may not be needed. It becomes more relevant the longer you're staying, the more rural your itinerary, and the more evening or night-time outdoor exposure you'll have — for example fieldwork, camping, or accommodation without effective screening or air conditioning in a rice-farming or pig-farming area. Your pharmacist will talk through your actual plans rather than applying a blanket answer based on country alone, so it's worth bringing your full itinerary to your appointment.
Do I need a Japanese encephalitis vaccine for Bali?
It depends on where in Bali you're going and what you'll be doing. Popular coastal tourist areas carry a different risk profile to rural rice-growing districts, and how long you're staying matters too. Our dedicated guide on whether you need a Japanese encephalitis vaccine for Bali goes into more destination-specific detail, and your pharmacist can confirm what's appropriate once they know your accommodation, itinerary and length of stay.
How many doses of Japanese encephalitis vaccine do I need?
Most adults aged 18 to 64 need two doses. NaTHNaC's schedule lists the standard course as day 0 and day 28, with a booster recommended around 12 to 24 months later if you're likely to be exposed again, or sooner for those settling long-term in a risk area. People with ongoing exposure may need a further booster at 10 years.
How long before travel do I need the JE vaccine?
Ideally, start the standard two-dose course at least a month before you travel. If your trip is sooner, NaTHNaC's licensed accelerated schedule allows adults aged 18 to 65 to have their second dose just seven days after the first, with both schedules needing the primary course completed at least a week before you could be exposed to the virus. If a course has already been interrupted, it can usually be resumed rather than restarted from scratch — let your pharmacist know your original dates.
Can I get the Japanese encephalitis vaccine on the NHS?
No. NHS inform's list of vaccines you're likely to pay for privately in Scotland includes Japanese encephalitis, alongside yellow fever, tick-borne encephalitis and rabies. It's arranged through a private travel clinic or pharmacy travel health service rather than free NHS provision.
Other mosquito-borne risks and bite avoidance
Japanese encephalitis isn't the only mosquito-borne illness to plan for in parts of Asia — dengue is a significant risk in many of the same countries, and unlike Japanese encephalitis, most travellers currently aren't eligible for a dengue vaccine under UK guidance, so bite avoidance matters even more. NaTHNaC recommends DEET-based repellent at up to 50% concentration, permethrin-treated or loose long clothing, and sleeping under a net or in screened, air-conditioned accommodation as the main ways to reduce your risk from both daytime and evening-biting mosquitoes. If rabies is also a consideration for your trip, our rabies vaccine in Edinburgh page covers who that's usually recommended for.
If you're heading somewhere rural in Asia for more than a couple of weeks, it's worth planning bite avoidance kit — repellent, permethrin spray, a net if your accommodation doesn't have screens — at the same time as any vaccines. — Emmanuel Ebube Umezulike, superintendent pharmacist
Is the Japanese encephalitis vaccine available where I'm travelling?
Not always, which matters if you're already partway through a course. NaTHNaC notes the licensed vaccine is only available in a small number of Asian countries, so travellers who've had their first dose in the UK are advised to complete the primary two-dose course with the same vaccine rather than assuming an equivalent will be available abroad. This is one more reason to plan the full course before you leave rather than expecting to finish it once you've arrived.
Booking your Japanese encephalitis vaccine in Edinburgh
You can book a Japanese encephalitis vaccination consultation at any of our branches, including our Haymarket & West End travel clinic, where your pharmacist will go through your itinerary and confirm whether the standard or accelerated schedule fits your travel date. Book online or call 0131 287 2020, and let us know if you're travelling sooner than a month so we can plan your doses accordingly.
Frequently asked questions
Do I really need the Japanese encephalitis vaccine?
For most short city or resort holidays, the individual risk is very low and it may not be needed. It becomes more relevant for longer, more rural trips with outdoor evening exposure, so your pharmacist will assess your actual itinerary rather than the country alone.
Can I get the Japanese encephalitis vaccine on NHS?
No. Japanese encephalitis is one of the travel vaccines you're likely to pay for privately in Scotland, alongside yellow fever, tick-borne encephalitis and rabies. It's available through private travel clinics and pharmacy travel health services.
How long before travel do I need the JE vaccine?
Ideally at least a month, using the standard two-dose schedule 28 days apart. If your trip is sooner, a licensed accelerated schedule with doses just seven days apart is available for adults aged 18 to 65.
How many doses of Japanese encephalitis vaccine do I need?
Most adults need two doses for the primary course, either 28 days or 7 days apart depending on the schedule used. A booster is usually recommended 12 to 24 months later if you're likely to be exposed again.
Do I need a Japanese encephalitis vaccine for Bali?
It depends on where in Bali you're staying and what you'll be doing — coastal tourist areas carry a different risk to rural rice-growing districts. Your pharmacist can confirm what's appropriate once they know your itinerary and length of stay.
Who is most at risk of Japanese encephalitis?
Long-stay travellers, those visiting rural areas with rice or pig farming, and anyone with significant outdoor, rural or night-time exposure such as fieldwork or camping, even on a shorter trip. Short city-based holidays carry a much lower risk.
What else should I do to protect against mosquito-borne illness in Asia?
Bite avoidance matters alongside vaccination, especially since dengue — common in the same regions — currently has very limited vaccine eligibility. DEET-based repellent, covering clothing and screened or netted accommodation all help reduce bites.
Can I complete my Japanese encephalitis course abroad?
It's better not to rely on this. The licensed vaccine is only available in a small number of Asian countries, so if you start the course in the UK, it's recommended you complete both doses with the same vaccine before you travel rather than assuming it will be available at your destination.
Sources
- Japanese encephalitis — NaTHNaC (TravelHealthPro)
- Japanese encephalitis: the green book, chapter 20 — UK Health Security Agency
- Travel health and vaccinations — NHS inform
- Insect and tick bite avoidance — NaTHNaC (TravelHealthPro factsheet)
General information, not a substitute for a consultation. Your pharmacist will recommend what is right for you after assessing your health and plans.
