London Travel Clinic

Japanese Encephalitis

What is it?

Japanese B encephalitis is spread by mosquitoes in parts of Asia.  It is a serious infection of the brain and vaccination is advised for those travelling to risk areas who are unable to avoid mosquito bites, staying for long periods (e.g. more than 4 weeks) or those visiting rural areas.

Vaccine Schedule (one year protection)

Two doses – Day 0 and Day 28
NB  Under exceptional circumstances, IXIARO® may be given up to 4 days early (i.e. day 24) following thorough risk assessment.
The second dose of vaccine should ideally be completed 1 month before travel
Booster –  every 1 – 2 years
If you are travelling to an area of risk you should also consider purchasing insect repellent and mosquito net to ensure effective anti-bite protection.
For further disease and country recommendations information visit:

Categories: All Diseases


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