Japanese encephalitis is caused by the bite of a mosquito that lives in certain parts of Asia.
In deciding to use a medicine, the risks of receiving the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes. It is not known whether this vaccine passes into breast milk. Although most medicines pass into breast milk in small amounts, many of them may be used safely while breast-feeding.