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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.
1 FACT: Chickenpox can be prevented with a vaccine. 2  Sometimes vaccinated persons come down with chickenpox but the illness is usually mild with fewer than 50 lesions. 3  FACT: The same virus that causes chickenpox (varicella zoster) can remain in the body and reawaken years or decades later to cause shingles. FACT: Chickenpox can be prevented with a vaccine. 2  Sometimes vaccinated persons come down with chickenpox but the illness is usually mild with fewer than 50 lesions. 3  FACT: The same virus that causes chickenpox (varicella zoster) can remain in the body and reawaken years or decades later to cause shingles.