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자료유형
학술저널
저자정보
은영덕 (부산대학교병원) 정혜선 (부산대학교병원 부산시 감염병관리지원단) Seungjin Kim (Busan Center for Infectious Disease Control and Prevention Busan National University Hospital) Wonseo Park (Centers for Disease Control and Prevention) Byoungseon Ahn (Epidemic Investigation Team of Busan Metropolitan City) Dongkeun Kim (Epidemic Investigation Team of Busan Metropolitan City) 김은희 (Epidemic Investigation Team of Busan Metropolitan City) 박은희 (부산광역시 보건환경연구원) Sunhee Park (Busan Institute of Health and Environment) 황인영 (부산광역시보건환경연구원) 손현진 (부산대학교병원)
저널정보
한국역학회 Epidemiology and Health Epidemiology and Health Vol.41
발행연도
2019.1
수록면
1 - 8 (8page)

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inOBJECTIVES: This study aimed to reveal the epidemiologic characteristics of the outbreak of gastroenteritis caused by Salmonella enterica serovar Thompson in Busan Metropolitan City and to identify points for improvement to prevent of food-borne disease outbreak. METHODS: This was a case-control study. The control group comprised asymptomatic students in the same classes of the cases. The presence or absence of symptoms, ingestion of each food provided by school meal service, and commonly ingested foods in addition to those foods in meal service were investigated. Moreover, specimens collected from rectal swab, preserved foods, and environmental surface were tested. RESULTS: Of the 6,092 subjects, 1,111 (1,083 students, 22 school personnel, and 6 foodservice employees) were included in the case group; this corresponded to an 18.4% attack rate. Symptoms included diarrhea (n=1,051, 94.6%), abdominal pain (n=931, 83.8%), febrile sensation (n=502, 45.2%), and vomiting (n=275, 24.8%). The epidemic curves of each 10 schools were unimodal. Investigation of food intake showed a significantly high odds ratio for chocolate cake in 5 out of the 10 schools. Laboratory test detected Salmonella enterica serovar Thompson both in rectal swab specimens of 9 schools and in collected preserved chocolate cakes of 9 schools. Pulsed-field gel electrophoresis test result showed that Salmonella enterica seorvar Thompson isolated from human and foods were the same. CONCLUSIONS: The source of infection for the Salmonella enterica serovar Thompson outbreak in the 10 schools of Busan Metropolitan City is chocolate cake. Traceback investigation for origin of contaminated food in food-borne disease outbreak and safety control during food production should be more enhanced.

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