Take the 2-minute tour ×
Travel Stack Exchange is a question and answer site for road warriors and seasoned travelers. It's 100% free, no registration required.

I will be spending four weeks in Japan, visiting all of the "main islands" except for Hokkaido. Some of the activities would be hiking across the woods and mountains as well.

The vaccine is for "Japanese Brain Fever" or Japanese Encephalitis.

share|improve this question
    
As per the faq - If your motivation for asking the question is “I would like to participate in a discussion about ______”, then you should not be asking here. You know the side effects, and the price, after that it should be between you and your doctor. Polling about 'should I' is always going to get subjective results (see any story in the news about parents not wanting vaccines for their kids in case it causes autism), and as such this question will be closed. If you can rephrase it for non-subjective answers, then you can flag it to be reopened. Sorry :/ –  Mark Mayo Mar 11 '13 at 17:00
    
would it be a valid question if i would add "how necessary is the japanese brain fever vaccine when travelling in japan?"? –  user981916 Mar 11 '13 at 17:37
2  
"how necessary" is still quite subjective. A better phrasing might be "is it required" - that can be definitively answered, or "do any government/international advisories recommend for/against it" - again, people could refer to the WHO or CDC for an answer for you. –  Mark Mayo Mar 11 '13 at 17:59
    
How about now? :) –  user981916 Mar 11 '13 at 18:23
    
Is that the official name of the disease? Japanese Brain Fever? Or is there a more scientific name as well? –  Kate Gregory Mar 11 '13 at 21:52
show 1 more comment

3 Answers

up vote 6 down vote accepted

The short answer is no, you don't need it.

The long answer is that all Japanese have been vaccinated for it since the 1960s and statistical incidence is down to background noise levels: this study figures less than one case per year since the 1990s. So unless you're planning on spending a lot of time in rural pig farms, it's not worth worrying about.

The CDC is, as ever, more cautious, but even they state that "vaccine not routinely recommended for travel limited to Tokyo or other major cities". The Australian Dep't of Health goes a bit further, stating that "the risk of travellers in Asia acquiring JE is extremely low" and only recommends vaccination for "travellers spending 1 month or more in rural areas of Asia" (unless there are significant other risk factors).

All that said, the vaccine is reasonably effective and provides lifetime protection. So if money and needles aren't a concern and (probably more importantly) you plan on traveling in places where the disease is more common, like Vietnam or Indonesia, you might as well go for it.

share|improve this answer
    
The key word here is "rural areas of ASIA". Vaccination quirements for Japan are in most cases much lower than for Indonesia, Malaysia etc. –  uncovery Mar 12 '13 at 4:14
add comment

The French governmental website "advices to travellers" says about Japan (my translation):

For long stays in rural zone (and at some seasons), vaccinations against 
hepatitis A, B, typhoid fever or japanese encephalitis can be advised.
share|improve this answer
add comment

Just thought I'd give a U.K. perspective.

You almost certainly don't need the vaccine, particularly if you're visiting soon - the transmission season is June - September, except in Okinawa / Ryukyu islands where it's April - December.

I was advised by the gap year charity I went to Japan with to get these vaccines, but my doctor informed me that they were unnecessary (for Tokyo).

More specifically from the U.K. Government on who is at risk:

JAPANESE ENCEPHALITIS: ... Short-term travellers and those who restrict their visits to urban areas are at very low risk. Those at higher risk are travellers who visit or work in rural agricultural areas such as rice fields and marshland. Long-term travellers and expatriates are also at higher risk.

and on risk management procedures

Travellers should take mosquito bite avoidance measures. Culex mosquitoes feed predominantly during the hours from dusk to dawn. Vaccination should be given to travellers whose planned activities put them at higher risk (see above). There are specific contraindications and adverse events associated with JE vaccine. A careful risk assessment should be made before administration and specialist advice sought as appropriate.

From The National Travel Health Network and Centre, part of the U.K Health Protection Agency.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.