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检查H5N1高度致病性禽流感对人类健康的威胁

Juliette Blais-Savoie¹, Emily Halajian¹, Kuganya Nirmalarajah¹

¹Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.

|November 6, 2025

概括

高致病性禽流感 (HPAI) H5N1病毒,类2.3.4.4b,正在全球蔓延,导致人类和哺乳动物的感染. 临床医生必须识别结膜炎和乳牛暴露等新症状,以便早期检测和管理H5N1.

科学领域:

兽医医学兽医医学兽医医学
传染性疾病传染性疾病
公共卫生公共卫生

背景情况:

2.3.4.4b类高度致病性禽流感 (HPAI) 病毒H5N1正在导致全球泛动物流行,人类感染率不断增加.
虽然目前的人类病例的发病率有限,但过去的HPAI H5N1菌株的死亡率很高 (约1. 50%) 的比例.
并非所有人类H5N1感染都与已知的动物暴露有关,因此需要意识到病毒生态的演变.

研究的目的:

通知临床医生关于H5N1病毒的变化特征.
突出新出现的风险因素和人类H5N1感染的临床表现.
强调需要在临床环境中早期识别和管理H5N1.

主要方法:

审查历史的H5N1表现和当前的2.3.4.4b A ((H5N1) HPAI病例.
分析病毒生态,人类风险因素和临床表现.
评估全球传播和对动物和人类健康的影响.

主要成果:

类别 2.3.4.4b H5N1 在动物中引起严重疾病和高死亡率.
新的风险因素包括接触感染的奶牛.
人类常见的症状包括结膜炎,发烧和上呼吸道感染,与历史的多器官和神经疾病表现不同.

结论:

2.3.4.4b H5N1 类的全球传播对人类健康构成重大新兴风险.
观察到前所未有的哺乳动物感染,病毒适应和溢出事件 (例如,乳牛到人类).
准备需要一个健康的方法,促进动物和人类的综合健康战略.

关键词:

这是一种H5N1流感.在H5Nx中,H5Nx是什么?一个健康,一个健康.患有急性呼吸道感染.部分 2.3.4.4bb 部分.新兴的病原体新兴的病原体病毒性动物病病毒性动物病.

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