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Etiology of Invasive Bacterial Infections in Immunocompetent Children in Korea (2006-2010): a Retrospective Multicenter Study

Authors
Rhie, KyuyolChoi, Eun HwaCho, Eun YoungLee, JinaKang, Jin HanKim, Dong SooKim, Yae-JeanAhn, YoungminEun, Byung WookOh, Sung HeeCha, Sung-HoHong, Young JinKim, Kwang NamKim, Nam HeeKim, Yun-KyungKim, Jong-HyunLee, TaekjinKim, Hwang MinLee, Kun SongKim, Chun SooPark, Su EunKim, Young MiOh, Chi EunMa, Sang HyukJo, Dae SunChoi, Young YounLee, Hoan Jong
Issue Date
2월-2018
Publisher
KOREAN ACAD MEDICAL SCIENCES
Keywords
Bacterial Infections; Epidemiology; Streptococcus agalactiae; Escherichia coli; Streptococcus pneumoniae; Staphylococcus
Citation
JOURNAL OF KOREAN MEDICAL SCIENCE, v.33, no.6
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF KOREAN MEDICAL SCIENCE
Volume
33
Number
6
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/77437
DOI
10.3346/jkms.2018.33.e45
ISSN
1011-8934
Abstract
Background: Invasive bacterial infections in apparently immunocompetent children were retrospectively analyzed to figure causative bacterial organisms in Korea. Methods: A total of 947 cases from 25 university hospitals were identified from 2006 to 2010 as a continuance of a previous 10-year period study from 1996 to 2005. Results: Escherichia coli (41.3%), Streptococcus agalactiae (27.7%), and Staphylococcus aureus (27.1%) were the most common pathogens in infants < 3 months of age. S. agalactiae was the most prevalent cause of meningitis and pneumonia and E. coli was the major cause of bacteremia without localizing signs in this group. In children 3 to 59 months of age, Streptococcus pneumoniae (54.2%), S. aureus (20.5%), and Salmonella spp. (14.4%) were the most common pathogens. S. pneumoniae was the leading cause of pneumonia (86.0%), meningitis (65.0%), and bacteremia without localizing signs (49.0%) in this group. In children >= 5 years of age, S. aureus (62.8%) was the predominant pathogen, followed by Salmonella species (12.4%) and S. pneumoniae (11.5%). Salmonella species (43.0%) was the most common cause of bacteremia without localizing signs in this group. The relative proportion of S. aureus increased significantly over the 15-year period (1996-2010) in children >= 3 months of age (P < 0.001), while that of Haemophilus influenzae decreased significantly in both < 3 months of age group (P = 0.036) and >= 3 months of age groups (P < 0.001). Conclusion: S. agalactiae, E. coli, S. pneumoniae, and S. aureus are common etiologic agents of invasive bacterial infections in Korean children.
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