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Japanese Encephalitis Vaccination

Vaccination schedule

For initial immunization, three injections are administered subcutaneously on days 0, 7 and 30. Booster immunization can be administered 2-3 years after the initial immunization to maintain the immune level. For children below 3 years of age, the dose should be decreased by half for each administration.

Recommendations

Travellers going to endemic areas in Asia or Western Pacific particularly in rural areas and staying over 30 days bear higher risk and are recommended for vaccination.

Adverse reactions

They mainly consist of local reactions showing varying degrees of induration, redness and tenderness, and systemic reactions such as evidenced by chills, headache and fever.

Contraindications

The following groups of persons are contraindicated to the vaccination:

  • Suffering from severe febrile illness or other active infections

  • Hypersensitivity reactions to a previous dose of the vaccination

  • Having neurological disorders


The following groups of persons should take special precautions:

  • Pregnancy

  • Immunocompromised

  • Persons with a history of allergic disorders
 


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Last revision date: 10 October 2012