J Korean Med Sci.
2019 Feb;34(7):e53. 10.3346/jkms.2019.34.e53.
Epidemiological Impact of the Korean National Immunization Program on Varicella Incidence
- Affiliations
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- 1Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea.
- 2Department of Preventive Medicine, Gachon University College of Medicine, Incheon, Korea.
- 3Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
- 4Division of Infectious Disease, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
- KMID: 2438308
- DOI: http://doi.org/10.3346/jkms.2019.34.e53
Abstract
- The number of reported varicella cases is continuously increasing in Korea; however, associated medical utilization is declining. The ratio between varicella insurance claims and reports of passive infectious disease surveillance has gradually increased to > 80% since the second half of 2017. The recent increase in reported varicella cases is influenced by improved reporting. We calculated the varicella incidence and cumulative incidence in each birth cohort according to age. The cumulative incidence rate among children aged < 6 years in the birth cohort born after the National Immunization Program introduced the varicella vaccine was about 60% lower than among children born before
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