Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Korea.
Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea.
Pediatr Infect Dis J. 2022 Dec 1;41(12):941-946. doi: 10.1097/INF.0000000000003714. Epub 2022 Sep 20.
Invasive bacterial infection (IBI) causes a significant burden in infants. In this study, we analyzed changes in epidemiology of IBI among infants in Korea.
A retrospective multicenter-based surveillance for IBIs in infants <3 months of age was performed during 2006-2020. Cases were classified as an early-onset disease (EOD) (0-6 days) or late-onset disease (LOD) (7-89 days). The temporal trend change in proportion of pathogens was analyzed.
Among 1545 cases, the median age was 28 days (IQR: 12, 53) and EOD accounted for 17.7%. Among pathogens, S. agalactiae (40.4%), E. coli (38.5%), and S. aureus (17.8%) were the most common and attributed for 96.7%. Among EOD (n = 274), S. agalactiae (45.6%), S. aureus (31.4%), E. coli (17.2%) and L. monocytogenes (2.9%) were most common. Among LOD (n = 1274), E. coli (43.1%), S. agalactiae (39.3%), S. aureus (14.9%) and S. pneumoniae (1.3%) were most common. In the trend analysis, the proportion of S. aureus (r s = -0.850, P < 0.01) decreased significantly, while that of S. agalactiae increased (r s = 0.781, P < 0.01).
During 2006-2020, among IBI in infants <3 months of age, S. agalactiae, E. coli, and S. aureus were most common and an increasing trend of S. agalactiae was observed.
侵袭性细菌感染(IBI)给婴儿带来了巨大负担。本研究分析了韩国婴儿 IBI 流行病学的变化。
对 2006-2020 年期间 3 个月以下婴儿的 IBI 进行了回顾性多中心监测。病例分为早发性疾病(EOD)(0-6 天)或晚发性疾病(LOD)(7-89 天)。分析病原体比例的时间趋势变化。
在 1545 例病例中,中位年龄为 28 天(IQR:12,53),EOD 占 17.7%。病原体中,无乳链球菌(40.4%)、大肠埃希菌(38.5%)和金黄色葡萄球菌(17.8%)最为常见,占 96.7%。在 EOD(n=274)中,无乳链球菌(45.6%)、金黄色葡萄球菌(31.4%)、大肠埃希菌(17.2%)和单核细胞增生李斯特菌(2.9%)最为常见。在 LOD(n=1274)中,大肠埃希菌(43.1%)、无乳链球菌(39.3%)、金黄色葡萄球菌(14.9%)和肺炎链球菌(1.3%)最为常见。在趋势分析中,金黄色葡萄球菌的比例(r s=-0.850,P<0.01)显著下降,而无乳链球菌的比例则增加(r s=0.781,P<0.01)。
在 2006-2020 年期间,3 个月以下婴儿的 IBI 中,无乳链球菌、大肠埃希菌和金黄色葡萄球菌最为常见,且无乳链球菌呈上升趋势。