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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.
Vaccination is the best way to prevent chickenpox. A chickenpox vaccine has been available in the U.S. since 1995 and is easy to get from a doctor or a public health clinic.The chickenpox vaccine is very effective at preventing the disease -- between 70% and 90% of people who get vaccinated will be completely immune to chickenpox.wo doses of the vaccine should be given at least four weeks apart. If you've never had chickenpox or been vaccinated and you are exposed to chickenpox, being vaccinated right away will greatly reduce your risk of getting sick.