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Effectiveness of Varicella Vaccination Program in Preventing Laboratory-Confirmed Cases in Children in Seoul, Korea by Young Hwa Lee; Young June Choe; Sung-il Cho; Cho Ryok Kang; Ji Hwan Bang; Myoung-don Oh; Jong-koo Lee is a Medicine article available to read on EtoBox.
What is Effectiveness of Varicella Vaccination Program in Preventing Laboratory-Confirmed Cases in Children in Seoul, Korea about?
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 y
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- Author
- Young Hwa Lee; Young June Choe; Sung-il Cho; Cho Ryok Kang; Ji Hwan Bang; Myoung-don Oh; Jong-koo Lee
- Publisher
- Korean Academy of Medical Sciences; Korean Academy of Medical Sciences (KAMJE); Seoul: Korean Academy of Medical Sciences (ISSN 1011-8934)
- Published
- 2016
- Language
- EN
- Field
- Medicine (Health Sciences)