Not to be administered by intravascular, intradermal or IM inj. Postpone vaccination in subjects suffering from acute severe febrile illness. Rare anaphylactic reaction. Anxiety-related reactions, including vasovagal reactions (syncope), hyperventilation or stress-related reactions as psychogenic response to the needle of inj. Have a review of medical history. Continue personal protection measures against mosquito bites after vaccination. Patients receiving Ig or blood products containing Ig, eg, blood or plasma should wait for at least 6 wk, & preferably for 3 mth, following end of treatment prior to administration. Administer vaccine at different inj site if to be given at the same time w/ other vaccines. May temporarily minor influence on the ability to drive & use machines. Women of childbearing potential should avoid pregnancy for at least 1 mth following vaccination. Women who intend to become pregnant should be advised to delay.