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Japanese Encephalitis

Japanese encephalitis is the leading cause of childhood encephalitis (inflammation of the brain) in Asia. It is transmitted by mosquito bites in 24 countries.

The Vaccine

Who can have this vaccine?

Adults and children 2 months+

Doses required

2 doses

The second dose should be 1 month after the first.


£130 per dose

How is it given?

This is an injection in the upper arm (or thigh).

How long does protection last?

2 doses protects you for at least 1 year.
A third dose given 12 months after the first will provide ongoing protection. In adults aged 18-64 a fourth dose should be offered 10 years after the first dose to those who remain at risk.

Other information

Full immunity takes up to one week to develop after the second dose.

Patient Leaflet

Please refer to the patient leaflet for full information on this vaccine:

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