无乳链球菌引起的软组织感染病例报告。具有a群抗原的镰状线虫1例报告及文献复习

Michał Karyński, Iwona Łętowska, P. Grzesiowski
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引用次数: 2

摘要

本文介绍了半乳糖不良链球菌亚种的微生物学特征、鉴定、致病性、流行病学及药敏情况。equisimilis (SDSE)。SDSE与化脓性链球菌关系密切。SDSE菌株通常含有G组抗原,较少含有C组抗原。与化脓性链球菌一样,大多数SDSE菌株在血琼脂培养基上可引起完全溶血(β-溶血),其中部分菌株具有相同的a型群特异性细胞壁抗原。这些共同的表型特征导致了这两个物种之间的混淆。因此,链球菌的微生物学诊断不应在血清分型阶段完成。一例软组织感染的左下肢的一个30岁的男子是描述。感染病原为a组β-溶血性SDSE。药敏试验显示该菌株对青霉素、红霉素、林霉素、左氧氟沙星敏感,对四环素耐药。第一代头孢菌素(头孢羟肟)治疗成功,感染症状完全缓解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Case reports Soft tissue infection caused by Streptococcus dysgalactiae subsp. equisimilis possessing group Aantigen: a case report and review of the literature
The study presents microbiological characteristics, identification, pathogenicity, epidemiology and antimicrobial susceptibility of Streptococcus dysgalactiae subsp. equisimilis (SDSE). The SDSE shows a close relationship to Streptococcus pyogenes. The SDSE strains usually have a group G antigen, less commonly a group C one. Like S. pyogenes, most of SDSE strains can cause complete hemolysis (β-hemolysis) on a blood agar medium, and some of them possess the same A type of group-specific cell wall antigen. These common phenotype traits lead to confusion between both species. For this reason, microbiological diagnosis of streptococci should not be finished at the stage of serogrouping. A case of soft tissue infection of the left lower limb of a 30-year-old man is described. The etiological factor of the infection was β-hemolytic SDSE of group A. Antimicrobial susceptibility tests revealed that the strain is susceptible to penicillin, erythromycin, clindamycin and levofloxacin, while it is resistant to tetracycline. Treatment with first-generation cephalosporin (cefadroxil) was successfully applied, resulting in a complete remission of the infection symptoms.
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