ArticleHuman vaccines & immunotherapeutics2025
Predictive model of public health impact of herpes zoster vaccination and related costs for adults aged ≥50 years in Republic of Korea.
Article in Human vaccines & immunotherapeutics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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9 authors.
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Abstract
Given the rapidly aging population in South Korea, the growing incidence and burden of herpes zoster (HZ) increase the need for HZ prevention. However, the public health impact of HZ vaccination has not been assessed in South Korea. This predictive modeling study estimated the public health and economic impact of available HZ vaccination strategies, using the ZOster ecoNomic Analysis (ZONA) model adapted with South Korea-specific inputs. Base case analysis involved adults ≥50 y of age (YOA), exploring three vaccination strategies (no vaccination/recombinant zoster vaccine [RZV]/zoster vaccine live [ZVL]) under mass vaccination (70% coverage) settings. Scenario and sensitivity analyses were performed. In the base case population of 23,329,743 people, without vaccination, 6,978,500 HZ and 733,278 postherpetic neuralgia (PHN) cases were estimated over their remaining lifetime. Compared with no vaccination, RZV vaccination avoided 3,675,898 HZ and 372,714 PHN cases, while ZVL vaccination avoided 1,013,654 HZ and 107,590 PHN cases. RZV and ZVL avoided 430,190 and 81,975 hospitalizations, respectively. Without considering the costs of vaccination, HZ-related medical costs averted with RZV were 1,399 billion KRW (1,026 million USD), and productivity loss averted was 503 billion KRW (368 million USD); ZVL averted 419 billion KRW (307 million USD) in HZ-related medical costs and 241 billion KRW (177 million USD) in productivity loss. Results were robust under scenario and sensitivity analyses. Mass RZV vaccination among adults ≥50 YOA in South Korea would considerably reduce HZ-related burden. Results may support value assessment and decision-making regarding vaccination strategies for HZ prevention in South Korea.
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