ArticleJournal of Korean medical science2016
Effectiveness of Varicella Vaccination Program in Preventing Laboratory-Confirmed Cases in Children in Seoul, Korea.
Article in Journal of Korean medical science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
What it found
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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
27 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Varicella Vaccine Effectiveness and Duration of Protection: A Systematic Review and Meta-Analysis.Journal of Korean medical science · 2025Pooled it
- No Consistent Evidence of Decreased Exposure to Varicella-Zoster Virus Among Older Adults in Countries with Universal Varicella Vaccination.The Journal of infectious diseases · 2022Trial
- Complementing conventional infectious disease surveillance with national health insurance claims data in the Republic of Korea.Scientific reports · 2019Trial
- SKYVaricella (a live attenuated varicella vaccine) safety issues revisited.Ewha medical journal · 2026Article
- Impact of varicella vaccination on the epidemiology of herpes zoster and postherpetic neuralgia: a narrative review.Journal of Yeungnam medical science · 2026Article
- A cost benefit analysis of varicella vaccination in South Korea.Vaccine: X · 2024Article
- Global varicella vaccination programs.Clinical and experimental pediatrics · 2022Article
- Seroprevalence comparison of different varicella vaccines among Turkish children.Human vaccines & immunotherapeutics · 2022Article
- Estimation of single-dose varicella vaccine effectiveness in South Korea using mathematical modeling.Human vaccines & immunotherapeutics · 2022Article
- Epidemiological characteristics of varicella outbreaks in the Republic of Korea, 2016-2020.Osong public health and research perspectives · 2022Article
- Letter to the Editor: Effectiveness of the Varicella Vaccine Among Korean Children: Suggestions for Future Research.Journal of Korean medical science · 2022Article
- The comparison of seroconversion rates among different varicella vaccines administered Turkish children; MAV/06 and vOka.Human vaccines & immunotherapeutics · 2021Article
- Waning Effectiveness of One-dose Universal Varicella Vaccination in Korea, 2011-2018: a Propensity Score Matched National Population Cohort.Journal of Korean medical science · 2021Article
- Letter to the Editor: Effectiveness of the Varicella Vaccine in Korea: Unresolved Issues.Journal of Korean medical science · 2021Article
- Article
- Letter to the Editor: Epidemiological Comments on the Effectiveness of the Varicella Vaccine in Korea.Journal of Korean medical science · 2020Article
- Budget impact analysis of multiple varicella vaccination strategies: a Mexico perspective.Human vaccines & immunotherapeutics · 2020Article
- Effects of One-dose Varicella Vaccination on Disease Severity in Children during Outbreaks in Seoul, Korea.Journal of Korean medical science · 2019Article
- Epidemiological Impact of the Korean National Immunization Program on Varicella Incidence.Journal of Korean medical science · 2019Article
- Global impact of varicella vaccination programs.Human vaccines & immunotherapeutics · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A universal one-dose varicella vaccination program was introduced in 2005 in Republic of Korea. However, the incidence of varicella in Korea has tripled over the last decade. We conducted a community based 1:1 matched case-control study to assess the effectiveness of one MAV strain-based vaccine and three Oka strain-based vaccines licensed for use in Korea. All cases were children in Seoul, Korea with varicella who were reported to the National Notifiable Disease Surveillance System in Seoul during 2013. The controls were age-matched children with mumps or scarlet fever but no history of varicella. We included 537 cases and 537 controls. The overall effectiveness of one dose of varicella vaccination was 13% (95% confidence interval [CI], -17.3-35.6). Of the four licensed varicella vaccines, only one was highly effective (88.9%; 95% CI, 52.1-97.4). The vaccine effectiveness for the other vaccines were 71.4% (95% CI, -37.5-94.1), -5% (95% CI, -61.9-31.9), and -100% (95% CI, -700-50.0). The overall effectiveness of vaccination was 75.8% (95% CI, 22.8-92.4) in the first year after vaccination and decreased thereafter; the effectiveness became -7.2% (95% CI, -130.9-59.2) in the fourth year after vaccination. Further studies are warranted to investigate reduced effectiveness of varicella vaccines in Korea.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.