<Ul> <Li> none </Li> </Ul> <Tr> <Th_colspan="2"> (what is this?) (verify) </Th> </Tr> <P> Japanese encephalitis vaccine is a vaccine that protects against Japanese encephalitis . The vaccines are more than 90% effective . How long this protection lasts is not clear but its effectiveness appears to decrease over time . Doses are given either by injection into a muscle or just under the skin . </P> <P> It is recommended as part of routine immunizations in countries where the disease is a problem . One or two doses are given depending on the version of the vaccine . Extra doses are not typically needed in areas where the disease is common . In those with HIV / AIDS or those who are pregnant an inactivated vaccine should be used . Immunization of travellers who plan to spend time outdoors in areas where the disease is common is recommended . </P>

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