Journal of Preventive Medicine and Public Health

The Korean Society for Preventive Medicine (대한예방의학회)
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Mumps Transmission Control Status and Inapparent Infection Rate among Middle and High School Students during the 2007-2008 Mumps Outbreak in Daegu

중고등학생의 볼거리 전파관리 현황과 불현성 감염률: 2007-2008 대구 볼거리 유행을 중심으로

  • Kim, Kyo-Hyun (Department of Preventive Medicine, Eulji University School of Medicine) ;
  • Kim, Chang-Hwi (Department of Pediatrics, Sunchunhyang University, College of Medicine) ;
  • Choi, Bo-Youl (Department of Preventive Medicine, Hanyang University, College of Medicine) ;
  • Go, Un-Yeong (Korea Center for Disease Control and Prevention) ;
  • Lee, Dong-Han (Korea Center for Disease Control and Prevention) ;
  • Ki, Mo-Ran (Department of Preventive Medicine, Eulji University School of Medicine)
  • 김교현 (을지대학교 의과대학 예방의학교실) ;
  • 김창휘 (순천향대학교 의과대학 소아과학교실) ;
  • 최보율 (한양대학교 의과대학 예방의학교실) ;
  • 고운영 (질병관리본부) ;
  • 이동한 (질병관리본부) ;
  • 기모란 (을지대학교 의과대학 예방의학교실)
  • Published : 2009.11.30
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Abstract

Objectives : This study was performed to investigate the mumps transmission control status and inapparent infection rate among middle and high school students in Daegu City during a mumps outbreak. Methods : Nine schools (two middle schools and seven high schools), which reported a number of mumps cases between 2007 and 2008 were selected for investigation. During March-May 2008, a standard questionnaire was distributed to gather information about case identification, instructed isolation measure, isolation status of mumps cases and related factors, and outdoor activities of nonisolated mumps case. Inapparent infection rate was estimated by serum mumps IgM and IgG antibodies status and self-reported mumps symptoms in three of the nine schools. Results : Among 2,560 respondents, more than half of students answered that they did not receive instructions in mumps transmission control measures during the outbreak. Among the 327 mumps cases identified by the questionnaire, 131 cases (40.1%) were considered as isolated and the isolation rates were significantly different among schools, grades, and gender. Of the non-isolated cases, 88.3% continued attending school. Inapparent mumps infection rates were between 56.3% and 70.2%. Conclusions : Mumps transmission control was inadequate to control the mumps outbreak. Although high inapparent infection rate would mitigate the transmission control effect of case isolation, this measure is fundamental for infection control. The reasons of this inadequate status need to be explored to develop an effective intervention strategy.

Keywords

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