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Nationwide Survey on Group A beta-Hemolytic Streptococcal Carrier Rate in Normal Korea School Children in 1996

Journal of the Korean Pediatric Society 1998;41(5):585-592.
Published online May 15, 1998.
Nationwide Survey on Group A beta-Hemolytic Streptococcal Carrier Rate in Normal Korea School Children in 1996
Sung-Ho Cha1, Yong-Mook Choi1, Sei-Won Yang2, Dong-Hwan Lee3, Chong-Guk Lee4, Chang-Ho Hong5
1Department of Pediatrics, College of Medicine, Kyunghee University
2Department of Pediatrics, College of Medicine, Kyunghee University, Seoul National University
3Department of Pediatrics, College of Medicine, Soonchunhyang University
4Department of Pediatrics, College of Medicine, Inje University
5Department of Pediatrics, College of Medicine, Ajou University
1996년도 시행한 한국초등학교 정상 소아의 A군 용혈성 연쇄상구균의 보균율
차성호1, 최용묵1, 양세원2, 이동환3, 이종국4, 홍창호5
1대한소아과학회 보건위원회
2대한소아과학회 보건위원회
3대한소아과학회 보건위원회
4대한소아과학회 보건위원회
5대한소아과학회 보건위원회
Correspondence: 
Sung-Ho Cha, Email: 1
Abstract
Purpose
: The accuracy of bacteriologic diagnosis of beta-hemolytic streptococcal pharyngotonsillitis depends on the degree of carrier rate in that area. It is the purpose of this study to obtain the carrier rate from seven different areas and to find results and epidemiologic factors.
Methods
: Throat swab was obtained from the tonsillar fossa of normal school children during March through May 1996. It was then plated on a 5% sheep blood agar plate and incubated overnight at 37℃ before examination for the presence of beta-hemolytic colonies.
Results
: The carrier rate of beta-hemolytic streptococci and group A streptococci were 27.6%, 20.0% at Uljin; 16.3%, 6.3% at Checheon; 16.4%, 2.7% at Seoul; 12.8%, 3.4% at Masan; 33.0%, 26.0% at Osan; 20.0%, 12.3% at Kunsan; and 17.7%, 11.4% at Chongju, respectively. Among 2,159 normal school children from 7 different areas, we obtained 450 plates of beta-hemolytic streptococci. Osan had the highest carrier rate(33.3%) and Masan had the lowest rate(12.8%) of beta-hemolytic streptococci. Among 450 plates of beta-hemolytic streptococci, we obtained 265 strains of group A streptococci. Osan had the highest carrier rate(26.0%) and the Seoul had the lowest rate(2.7%) of group A streptococci.
Conclusion
: Higher carrier rates were found in Uljin and Osan, where there is a lower population density. We supposed that low carrier rates might be related to antibiotic abuse or some epidemiologic factor should be investigated.
Key Words: Beta-Hemolytic Streptococcus, Group A Streptococcus, Carrier, Epidemiology


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