Epidemiological Investigation of a Measles Outbreak in a Preschool in Incheon, Korea, 2006

2006년 인천의 한 유치원에서 발생한 홍역 유행 역학조사

  • So, Jae-Sung (Division of Vaccine Preventable Disease Control & National Immunization Program) ;
  • Go, Un-Yeong (Division of Vaccine Preventable Disease Control & National Immunization Program) ;
  • Lee, Dong-Han (Division of Vaccine Preventable Disease Control & National Immunization Program) ;
  • Park, Koang-Suk (Division of Infectious Disease Surveillance, Centers for Disease Control & Prevention) ;
  • Lee, Jong-Koo (Centers for Disease Control & Prevention)
  • 소재성 (질병관리본부 예방접종관리팀) ;
  • 고운영 (질병관리본부 예방접종관리팀) ;
  • 이동한 (질병관리본부 예방접종관리팀) ;
  • 박광숙 (질병관리본부 전염병감시팀) ;
  • 이종구 (질병관리본부)
  • Published : 2008.05.31

Abstract

Objectives : This study describes a plan that was designed to prevent a measles outbreak that showed a changed outbreak pattern. This study is based on the epidemiological investigation of a measles outbreak in a preschool in Incheon, Korea, 2006. Methods : The subjects were 152 students at a preschool where a measles outbreak occurred. A questionnaire survey was conducted and serological testing for measles-specific IgM was preformed. Results : Of the fifteen confirmed, identified cases, eleven patients had been vaccinated with one dose, one patient had received two doses and three patients were unvaccinated. The three unvaccinated cases consisted of one 5-year-old child, one 3-year-old child and one 16-month-old infant. For the cases with one dose of the vaccination, there were 11 cases, which consisted of six 5-year-old children, two 4-year-old children, two 3-year-old children and one 2-year-old child. The case with two doses of the vaccination was one 4-year-old child. The attack rate of measles was 100% in the 0-dose group, 11.2% in the 1-dose group and 2.0% in the 2-dose group. The vaccine's efficacy was 88.8% in the 1-dose group and 98.0% in the 2-dose group. The vaccine effectiveness for the 2-dose group was higher than that of the 1-dose group. Conclusions : High coverage with a 2-dose vaccination should be maintained, and the vaccination should be given at the suitable time to prevent a measles outbreak with a changed outbreak pattern.

Keywords

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