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长期监测来自韩国野生鸟类的禽类冠状病毒

Chae-Eun Kim¹, Tran Bac Le², Eun-Kyo Hong¹

¹Gyeongkuk National University, Andong, South Korea.

Current microbiology

|September 26, 2025

概括

这项研究在韩国野生鸟类中检测到冠状病毒 (CoV),识别了马冠状病毒和三角形冠状病毒 (δ-CoV). 值得注意的是,在韩国首次在野生鸟类中发现了具有跨物种传播潜力的Delta冠状病毒.

科学领域:

* 病毒学病毒学
* 鸟类学鸟类学
* 分子生物学 * 分子生物学

背景情况:

* 迁徙野生鸟类作为各种病原体的水库.
* 已知冠状病毒 (CoV) 可以感染广泛的宿主,包括鸟类.
*了解鸟类种群中的CoV多样性对于公共卫生至关重要.

研究的目的:

* 调查韩国迁徙野生鸟类中冠状病毒的流行率和遗传多样性.
* 用于对鸟类物种中新发现的马冠状病毒 (γ-CoV) 和三角形冠状病毒 (δ-CoV) 的特征.
* 评估检测到的冠状病毒的跨物种传播潜力.

主要方法:

* 在韩国 (2014-2022) 采集和分析了来自四种鸟类 (Anas属) 的2868个便样本.
*使用嵌套PCR检测冠状病毒,以向RNA依赖RNA聚合酶 (RdRp) 基因.
*对已识别的 γ-CoV 和 δ-CoV 菌株进行了家族遗传学分析.

主要成果:

* 在2,868个样本中,28个样本 (0.97%) 呈冠状病毒阳性.
* 17个样本含有 γ-CoV,11个样本含有 δ-CoV.
*新发现的δ-CoVs与猪的δ-CoVs有遗传联系,其中有7种与HKU15相关的菌株和4种在Buldecovirus亚组1中的菌株. 这标志着在韩国野生鸟类中首次检测到δ-CoVs.

结论:

* 韩国的迁徙野生鸟类携带多种马和三角形冠状病毒.
*检测到与猪菌株有遗传联系的禽类 δ-CoV 突出了潜在的动物感染风险.
*需要进一步研究,以了解这些冠状病毒的流行病学和物种间传播动态.

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