Also adults without a reliable history of having had chickenpox. Flu occurs from December to April. For all travelers. After primary dose, a booster in six to twelve months recommended to complete the series for long-term protection. For all health care personnel, those dwelling over six months, if intimate contact with the people is anticipated, or if emergency health care facilities are substandard.
Full immunization requires three injections over six months.
Booster every five years. Booster every two years. Booster every three years. Pre-exposure primary series of three injections of HDCV given over 28 days. Two booster doses are required after exposure to animal.