Japanese Encephalitis

Japanese Encephalitis is a viral infection transmitted by mosquitoes, endemic in Asian countries.

Most infections are asymptomatic or mild (fever and headache). Approximately 1 in 250 infections results in severe illness with fever, headache, neck stiffness, disorientation, coma, seizures and spastic paralysis, with the fatality rate up to 30% of severe cases.

Travellers are at increased risk of infection when visiting rural areas. Short trips (usually less than a month), especially if only travelling to urban areas, are considered lower risk.

All travellers should avoid mosquito bites particularly between dusk and dawn.

Japanese Encephalitis vaccine
– From 6 months
– 2-3 doses required
– Day 0 and 28 OR day 0 and 7, 12 months
– £100 per dose