Recommended doses of Japanese encephalitis vaccines
Age at vaccination Vaccine Number of doses Booster Notes
≥2 months to <18 years JEspect 2 doses (28 days apart) No recommendation

Each dose of JEspect in infants and children aged ≥2 months to <3 years is 0.25 mL.

There are no data to inform recommendations for booster doses in infants and children <18 years. Consider a booster if the child needs sustained protection.

≥9 months to <18 years Imojev 1 dose 1–2 years after primary dose if ongoing risk of JE virus exposure None
≥18 years Imojev 1 dose Not required Seroprotective antibody levels persist in most adults 5 years after a single dose of Imojev.5
JEspect 2 doses (28 days apart) 1–2 years after primary dose if ongoing risk of JE virus exposure Adults can receive an accelerated primary course of JEspect (2 × 0.5 mL doses, 7 days apart) if they are at imminent risk of exposure to JE virus.
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Last updated: 
4 June 2018
Last reviewed: 
4 June 2018

Definitions

JE
Japanese encephalitis