Japanese encephalitis (JE) is a serious infection caused by a virus. It occurs in certain rural parts of Asia People who live or travel in certain rural parts of Asia should get the vaccine.

Recommended age of vaccination:

Children 1-3 years of age get a smaller dose than older children and adults. Children younger than 1 year of age should not normally get the vaccine.

• Three doses of vaccine are given, with the 2nd dose given 7 days after the 1st and the 3rd dose given 30 days after the 1st.

• The third dose should be given at least 10 days before travel; to be sure the vaccine begins to protect and to allow for medical care if there are delayed side effects.

• A booster dose may be needed after 2 years.

It should not be given to people who-

• Have severe allergies, especially a history of allergic rash (hives) or wheezing after a wasp sting or taking medications,

• Are pregnant, or are a nursing mother,

• Will be traveling for fewer than 30 days, especially if you will be in major urban areas.