通过扩展亚型分类协议检测出一种确诊的和一种潜在的人类流感A ((H5N1) 病例
Grant P Higerd-Rusli1, Abraar Karan2, Seth A Hoffman2
1Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.
ASM case reports
|January 8, 2026
概括
在加利福尼亚州,在医院系统中检测到两例潜在的社区感染病例,突出了基于暴露的禽流感监测漏洞.
科学领域:
- 病毒学 病毒学
- 流行病学 流行病学
- 公共卫生 公共卫生
背景情况:
- 目前美国对高度致病性禽流感A ((H5N1) 的监测依赖于已知的动物暴露.
- 这种方法可能会错过社区获得的感染,限制早期检测.
研究的目的:
- 在医院系统中评估通用H5亚型检测流感A (H5N1) 的有效性.
- 为了确定禽流感的潜在社区传播,无论暴露史.
主要方法:
- 对所有流感A阳性呼吸道样本进行了通用H5亚型鉴定.
- 在医院系统内,从2024年8月到2025年4月收集样本.
- 对阳性病例使用了测序和公共卫生实验室确认.
主要成果:
- 在4,488个流感A阳性样本中,发现了两个H5RNA阳性病例.
- 这两种病例都缺乏已知的H5N1暴露风险,并呈现出轻度症状.
- 一个病例的H5基因与美国乳制品循环病毒有关;第二个需要进一步调查.
结论:
- 基于暴露的监测可能会低估禽流感A ((H5N1) 流通情况.
- 全面的,地理定位的监控可以帮助检测密码的流通和潜在的社区传播.
- 更广泛的监测策略对于能够检测流行病的病原体至关重要.
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