About correct: According to experts : the duration of immunity afforded to humans by a two injection vaccination course was found to be between two to three years.[12][13][14] following administration of a booster dose (recommended at one year), one study found 97% of immuno-competent individuals demonstrate protective levels of neutralizing antibodies at 10 years.[15].
Answered 4/4/2016
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2 doctors weighed in across 2 answers
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