Serological Analysis and Epidemiologic Characteristics of Group A Streptococci in Seoul(1998-2000)

3년간(1998-2000년) A군 연구균 감염의 혈청학적 형분류와 역학적 특징

  • Choi, Sun-Hee (Department of Pediatrics, College of Medicine, Kyunhee University) ;
  • Kim, Yun-Ho (Department of Pediatrics, College of Medicine, Kyunhee University) ;
  • Cha, Sung-Ho (Department of Pediatrics, College of Medicine, Kyunhee University) ;
  • Kim, Ki-Sang (Department of Molecular Bacteriology, National Institute of Health) ;
  • Lee, Young-Hee (Department of Molecular Bacteriology, National Institute of Health)
  • 최선희 (경희대학교 의과대학 소아과학교실) ;
  • 김연호 (경희대학교 의과대학 소아과학교실) ;
  • 차성호 (경희대학교 의과대학 소아과학교실) ;
  • 김기상 (국립보건원 분자세균과) ;
  • 이영희 (국립보건원 분자세균과)
  • Received : 2002.06.26
  • Accepted : 2002.08.23
  • Published : 2002.11.15

Abstract

Purpose : Group A streptococci have a cell wall which consists of M protein and T protein. T protein is known to be helpful in the understanding of the epidemiology of group A streptococci. To study the epidemiologic characteristics, we serotyped T protein of group A streptococci obtained from patients admitted to hospitals, or who visited OPD in five districts of Seoul the during last three years. Methods : Group A streptococci were obtained in five districts in north, northeast, central, northwest and south Seoul from 1998 through 2000. All isolated group A streptococci were serotyped with T protein antisera(Institute of Sera and Vaccine, Prague, Czech Republic). Results : In 1998, analysis of obtained total number of 92 strains revealed that T12, T4, and NT acounted for 72.2%. Among seven cases of scarlet fever, T12 was isolated in four cases and T4 was found in three cases. Two cases of tonsilar abscess produced T8 and NT. One case of cervical lymphadenitis showed T12. In 1999, 41 cases were studied showing that T12, T4, and T1 contributed 68%. Among five cases of scarlet fever, T12 and T4 make up three case. There were two cases of pneumonia(T4 and T1) and one case of cervical lymphadenitis(T8/25). In 2000, the study was performed in four districts except the central area. Among 83 isolates, T12, T4 and T1 accounted for 63.9%. There were three cases of scarlet fever(T12, T4, T5), one case of tonsillar abscess(T12), one case of pneumonia(NT) and one case of sepsis(T1). Conclusion : Serological analysis of T protein of group A streptococci shows no endemic specificity. The yearly pattern reveals that T12 had been decreasing but T1 had shown the opposite trend.