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Best Answer: It is supposed to last a lifetime. The main benefit of the chickenpox vaccine to individuals is long-lasting immunity to chickenpox.All other common vaccines require a booster dose to maintain immunity.The chickenpox vaccine lasts so long that a booster dose has not yet been recommended, although it probably will be at some time in the future.est Answer: It is supposed to last a lifetime. The main benefit of the chickenpox vaccine to individuals is long-lasting immunity to chickenpox. All other common vaccines require a booster dose to maintain immunity.
Chickenpox, also known as varicella, is a very contagious disease caused by the varicella-zoster virus. It is spread easily through the air by infected people when they sneeze or cough. The disease also spreads through contact with an infected person's chickenpox blisters.hildren who have never had chickenpox should get two doses of chickenpox vaccine, with the 1st dose administered at 12 â 15 months of age and the 2 nd at 4-6 years of age. Two doses, administered 4-8 weeks apart, are also recommended for people 13 years of age or older.