下一代元基因组测序揭示了COVID-19中呼吸道菌群的分布
Chong Wang1,2, Shuo Yang1,2, Qi Liu1,2
1Department of Laboratory Medicine, Peking University Third Hospital, Beijing, 100191, China.
Scientific reports
|October 30, 2025
概括
下一代元基因组测序 (mNGS) 提供了比传统培养更敏感的低呼吸道感染 (LRTI) 病原体检测. 这种先进的方法显示出诊断COVID-19相关LRTI的前景.
科学领域:
- 传染性疾病 传染性疾病
- 微生物学 微生物学
- 基因组学就是基因组学.
背景情况:
- 下呼吸道感染 (LRTI) 带来了诊断上的挑战.
- 准确的病原体鉴定对于有效的治疗至关重要,特别是在COVID-19患者中.
- 传统的培养方法在灵敏度和检测范围上有局限性.
研究的目的:
- 为了比较下一代元基因组测序 (mNGS) 的诊断性能与LRTI的传统培养.
- 评估mNGS在COVID-19和非COVID-19患者中检测细菌和真菌病原体的能力.
- 探索呼吸道微生物群,炎症标志物和LRTI中的临床结果之间的关系.
主要方法:
- 对43名LRTI患者 (34名COVID-19,9名对照) 的回顾性分析.
- 在mNGS和传统培养之间比较病原体检测率.
- 对呼吸道微生物群组成和与临床和炎症标志物的相关性进行分析.
主要成果:
- 与培养 (81.08%) 相比,mNGS对病原体检测的灵敏度明显更高 (95.35%).
- mNGS发现的细菌和真菌范围比以前识别的更广泛.
- 在严重的COVID-19病例中观察到呼吸道微生物群丰度减少,与炎症标志物相关.
结论:
- mNGS是一个高度敏感和全面的工具来诊断LRTI,特别是在COVID-19的背景下.
- 该研究强调了mNGS在改善病原体分析和告知临床管理方面的潜力.
- 需要进一步的前性研究来验证mNGS的实用性,解决特异性,并评估成本效益.
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