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English Abstract
Mumps Transmission Control Status and Inapparent Infection Rate among Middle and High School Students during the 2007-2008 Mumps Outbreak in Daegu.
Kyo Hyun Kim, Chang Hwi Kim, Bo Youl Choi, Un Yeong Go, Dong Han Lee, Moran Ki
J Prev Med Public Health. 2009;42(6):408-415.
DOI: https://doi.org/10.3961/jpmph.2009.42.6.408
  • 5,414 View
  • 48 Download
  • 5 Crossref
AbstractAbstract PDF
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 non-isolated 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.
Summary

Citations

Citations to this article as recorded by  
  • A Case of Idiopathic Orbital Inflammation With Elevated Anti-Mumps Immunoglobulin M Antibody
    Jiyeon Han, Kyung In Woo
    Ophthalmic Plastic & Reconstructive Surgery.2024; 40(3): e86.     CrossRef
  • Trend of measles, mumps, and rubella incidence following the measles‐rubella catch up vaccination in the Republic of Korea, 2001
    Young June Choe, Hye‐Eun Eom, Sung‐Il Cho
    Journal of Medical Virology.2017; 89(9): 1528.     CrossRef
  • Resurgence of Mumps in Korea
    Sun Hee Park
    Infection & Chemotherapy.2015; 47(1): 1.     CrossRef
  • An Outbreak of Mumps in a High School, Seoul, 2013
    Ha Ra Kang, Sung Yoon Kim, Hyo Hyun Cha, Young Min An, In Ah Park, Hae Ji Kang, Byung Wook Eun
    Pediatric Infection & Vaccine.2015; 22(1): 1.     CrossRef
  • Reappraisal of MMR vaccines currently used in Korea
    Hyunju Lee, Han Wool Kim, Hye Kyung Cho, Eun Ae Park, Kyong Min Choi, Kyung‐Hyo Kim
    Pediatrics International.2011; 53(3): 374.     CrossRef
Original Article
An Epidemiologic Investigation on Mumps Outbreak in Cheju-do, 1998.
Myounghee Kim, Moran Ki, Youngjoo Hur, Boyoul Choi
Korean J Prev Med. 2001;34(1):89-99.
  • 2,094 View
  • 27 Download
AbstractAbstract PDF
OBJECTIVES
To describe the characteristics of a mumps epidemic in Cheju-do, 1998 and to identify the risk factors associated with mumps infection. METHODS: To estimate attack rate, previously collected data from the Nationally Notifiable Communicable Disease Reporting System and School Health Reporting System, temporarily administered by Division of Education, as well as additional surveillance data were used. In order to identify the clinical characteristics and risk factors associated with mumps, we conducted a questionnaire survey in 17 schools (9 elementary, 4 middle, and 4 high schools) among a population that included healthy students. RESULTS: From March 3 to August 31, 2,195 cases of mumps were identified, and patients under 20 years of age accounted for 2,162 cases (attack rate 13.2, 95% CI 12.6-13.7/1,000). The attack rate for the population under 20 years of age was the highest in Nam county (44.7/1,000), and in the 7-12 years old sub-group(>20.0/1,000). There was no sexual difference. 80.9% and 59.7% of patients presented periauricular and submandibular swelling respectively. Aseptic meningitis was a complication in 2.9% of cases, orchitis in 1.3%, epididymitis in 0.9% and oophoritis in 0.6% respectively. The overall MMR vaccination rate was 59.1% and it decreased in accordance with increasing age. In students aged 10 years old or below, household contact and MMR vaccination status was significantly associated with infection, and only among students with household contact, the risk of one dose MMR(OR=10.22, 95% CI 2.92-35.78) and non-vaccination (OR=11.62, 95% CI 1.96-68.96) was significantly greater when compared with that of two dose vaccination. Among students aged 11 years old or above, household contact history was significantly associated and MMR vaccination status was not associated. CONCLUSIONS: Low vaccination rate and vaccine failure were thought to predispose the population for this large outbreak. To prevent sustained mumps outbreaks, a second MMR vaccination should be encouraged and catch up vaccinations should be given to elderly children who remain susceptible.
Summary

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