ArticleAllergy2026
Live Zoster Vaccination and the Reduced Risk of Chronic Respiratory Diseases: An Emulated Target Trial.
Article in Allergy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Global herpes zoster burden in adults with COPD: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2026Pooled it
- Reply: Exploring a More Accessible and Affordable Live Attenuated Herpes Zoster Vaccine (SKYZoster®) in the Philippines.Infection & chemotherapy · 2025Article
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Authors and funding
11 authors.
Funding
Abstract
backgroundRecent previous study suggests that live zoster vaccination may reduce the risk of diseases like dementia and cardiovascular diseases, through prevention of herpes zoster. Thus, this study aims to evaluate whether live zoster vaccination can reduce the risk of chronic respiratory disease including chronic obstructive pulmonary disease (COPD), asthma, and interstitial lung disease (ILD).
methodsThis target trial emulation study utilized a nationwide, population-based cohort of 2,519,582 individuals aged ≥ 50 years in South Korea. The cohort was constructed by integrating health insurance data from the Korea Health Insurance Review and Assessment Service, national health examination data from the Korean National Health Insurance Service, and vaccination records from the Korea Disease Control and Prevention Agency. The exposure was receipt of at least one dose of live zoster vaccination between January 1, 2012, and December 31, 2021. Outcomes included the incidence of newly diagnosed COPD, asthma, and ILD, as well as hospitalizations associated with these conditions. Following stabilized inverse probability of treatment weighting, we employed the Cox proportional hazards model to estimate adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) and calculated restricted mean survival time (RMST) for the risk of outcomes associated with live zoster vaccination. The observation period extends from the index date to January 31, 2024. MEASUREMENTS AND MAIN
resultsAfter stabilized inverse probability of treatment weighting, 745,644 individuals were assigned to the vaccinated group and 1,069,230 to the unvaccinated group, with a mean age of 62.12 years (SD, 3.45) and 49.18% were male. Live zoster vaccination significantly reduced the risk of COPD (aHR, 0.70 [95% CI, 0.69-0.71]; RMST difference, 23.22 days [95% CI, 21.72-24.71]), asthma (0.68 [0.67-0.69]; 25.96 days [24.52-27.40]) and ILD (0.78 [0.73-0.82]; 2.39 days [2.05-2.74]). Additionally, the vaccination significantly reduced the risk of hospital admissions due to these conditions: COPD (0.59 [0.53-0.65]), asthma (0.54 [0.49-0.59]), and ILD (0.68 [0.58-0.79]). The observed protective benefit was more pronounced in non-smokers compared to current smokers. The time-attenuated effect was strongest during 1 to 2 years following live zoster vaccination and remained evident for up to 6 years.
conclusionsLive zoster vaccination significantly reduced the incidence of chronic respiratory disease and related hospitalizations. These findings suggest that live zoster vaccination may provide public health benefits beyond preventing herpes zoster in adults aged ≥ 50 years.
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