Japanese encephalitis: the green book, chapter 20
Japanese encephalitis immunisation information for public health professionals, including updates.
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Japanese encephalitis (JE) is a mosquito-borne viral encephalitis caused by a flavivirus. It is the leading cause of childhood encephalitis in Asia, with 20,000 to 50,000 cases per annum (Halstead et al., 2008; World Health Organization, 1998).
Last updated 11 June 2018 + show all updates
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• Added note, cases of JE are also reported outside of the normal seasonal period of high transmission • A rapid schedule can be used off license in children from 2 months and adults over 65 years of age where there is genuinely insufficient time to complete the standard schedule. • Information added on the timing of booster doses for different age groups.
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Updated to include revisions in epidemiology, current date and the type of vaccine available.
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This chapter has been rewritten in light of the Green Cross vaccine being no longer recommended for use in the UK and IXIARO now licenced for infants from 2 months of age.
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Updated Body text to include a link to National Archives (chapter update patches) and NHS Choices.
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First published.