在2名固体器官移植接受者中,严重的非捐赠者衍生的淋巴细胞胆膜炎病毒感染
Leanna E Sayyad1, Kami L Smith1, Katrin S Sadigh1
1Division of High-Consequence Pathogens and Pathology, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Open forum infectious diseases
|February 3, 2025
概括
两名实体器官移植接受者患有严重的淋巴细胞胆膜炎病毒 (LCMV) 感染,并非来自他们的捐赠者,而是可能来自之前的动物暴露. 这凸显了在免疫受损患者中需要提高对LCMV的认识.
科学领域:
- 传染性疾病 传染性疾病
- 病毒学 病毒学
- 移植医学 移植医学 移植医学
背景情况:
- 淋巴细胞冠状腺炎病毒 (LCMV) 感染带来严重的风险,包括传播疾病和死亡,特别是在像移植接收者这样的免疫功能低下个体中.
- 之前在移植受体中的LCMV病例与感染的捐赠者有关,但本研究探讨了非捐赠者衍生的感染.
研究的目的:
- 在实体器官移植接受者中调查两例严重的非捐赠者衍生的LCMV感染病例.
- 为了确定这些免疫受损患者中LCMV感染的来源.
主要方法:
- 基因组下一代测序 (mNGS) 用于初始LCMV识别.
- 使用分子诊断,血清学和植物遗传学分析进行确认测试.
- 综合流行病学调查,包括供体和受体样本分析和动物暴露评估.
主要成果:
- 通过mNGS在两个来自不同捐赠者的实体器官移植接受者身上检测到LCMV.
- 一名心脏移植接受者死于传播的LCMV感染;一名脏移植接受者幸存下来LCMV脑膜炎.
- 流行病学调查将这两种感染与移植前显著的动物暴露联系起来,排除了供体传播.
结论:
- 这些移植受体的LCMV感染可能源于移植前环境动物暴露.
- 医疗保健提供者必须对免疫受损宿主中LCMV相关的严重疾病保持警,即使不怀疑捐赠者传播.
- 对于LCMV的诊断能力主要在专门的参考实验室中可用.
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