Do adults previously vaccinated with the shingles vaccine need a booster?
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Do adults previously vaccinated with the shingles vaccine need a booster? EVIDENCE-BASED ANSWER: The answer is unclear. The shingles vaccine has been shown to reduce the severity and incidence of shingles for 5 years and the incidence of postherpetic neuralgia (PHN) for 2 years after vaccination (SOR: B, based on a single RCT and follow-on study). Its effectiveness beyond those timeframes is less certain, and there are currently no studies assessing the safety or efficacy of a booster (SOR: C, consensus guideline).
Evidence-based practice 20, no. 1 (2017): E02-E03