作为麻风足的新兴二次病原体,Streptococcus dysgalactiae亚种-equisimilis
Kumar Ebineshan1, Michael Sukumar Pallapati1, Aparna Srikantam2
1Department of Microbiology, LEPRA - Society, Blue Peter Public Health and Research Center, Hyderabad, India.
Iranian journal of microbiology
|November 13, 2024
概括
麻风足通常具有多微生物感染,包括不常见的细菌. 下一代测序揭示了比传统方法更广泛的病原体范围,强调了在LFU治疗中需要先进的诊断.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 皮肤病学 皮肤病学
背景情况:
- 麻风足 (LFU) 经常由于二次细菌污染而发展为慢性感染.
- 目前对LFU的治疗主要依赖于经验性抗菌疗法,这可能会错过非传统的病原体.
- 慢性LFU可能导致形和残疾.
研究的目的:
- 为了研究麻风足的多微生物病因.
- 将传统的细菌培养与下一代测序 (NGS) 进行比较,用于识别LFU中的病原体.
- 突出非传统细菌在LFU病变发生中的作用.
主要方法:
- 招募了26名患有足的麻风患者.
- 从每位患者身上收集了两张伤口拭子:一个用于细菌培养,一个用于NGS.
- 使用标准培养技术和先进的NGS进行了细菌鉴定.
主要成果:
- 确定了常规培养中的 *Streptococcus* spp. 作为主要的有机体 (50%).
- NGS揭示了 *Streptococcus dysgalactiae 亚种. 这种杆菌是什么? 在几个案例中,equisimilis* (34.61%) 是最丰富的单一生物体.
- 还发现了Arcanobacterium haemolyticum和Streptococcus pyogenes,混合感染很常见.
结论:
- 低血压患者表现出涉及常规和非常规细菌病原体的多微生物感染.
- 了解LFU中复杂的微生物群落对于开发有效的治疗策略至关重要.
- 与传统方法相比,NGS提供了更全面的方法来识别LFU中的病原体.
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