使用微生物无细胞DNA检测Mpox病毒:致病原体无异性测序的潜力,用于快速识别新出现的病原体
Sarah Y Park1, Martin S Lindner2, Kevin Brick2
1Medical Affairs, Karius, Inc, Redwood City, California.
The Journal of infectious diseases
|October 12, 2023
概括
无等离子细胞DNA测序提供了一种用于检测麻疹病毒 (MPXV) 的新方法. 这种方法有助于识别不同的菌株和非典型病例,改善MOPOX诊断和监测.
科学领域:
- 病毒学 病毒学
- 基因组学就是基因组学.
- 传染性疾病 传染性疾病
背景情况:
- 2022年病毒 (MPXV) 爆发显示了PCR检测和抽样样本的局限性,这是由于不同的菌株和异型呈现.
- 目前美国的测试依赖于病变扫描,这些扫描在感染后期出现,可能会被错过.
研究的目的:
- 评估血微生物无细胞DNA (mcfDNA) 测序对MPXV检测的有用性.
- 评估mcfDNA测序对MPXV亚型的能力,并确定共感染.
主要方法:
- 在使用mcfDNA测序对12名病例患者的15个血样本进行MPXV检测和基因定型.
- 在 silico 评估中验证了测试性能.
- 用公开可用的序列进行了植物动力学分析.
主要成果:
- 在12名病例患者中检测到MPXV mcfDNA,包括那些表现异常或怀疑先前感染的病例.
- 高MPXVmcfDNA度与严重的mpox相关,有4人死亡.
- 在7名患者中检测到共感染,MPXV基因型定型确定了22个突变.
结论:
- 血mcfDNA测序是MPXV检测,量化和亚型化的一种有前途的非侵入性方法.
- 这种技术可以补充现有的mopox测试,特别是在弱势群体或非典型症状的人群中.
- 来自mcfDNA测序的菌株信息可以增强疾病监测和病原体跟踪.
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