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在南极洲感染多种鸟类的Deltacoronavirus的长期维持

Fernanda Gomes¹, Alexandre Freitas da Silva^2,3, Tatiana Prado¹

¹Laboratory of Respiratory, Exanthematic, Enteric Viruses and Viral Emergencies, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.

Microbiology spectrum

|June 16, 2025

概括

在南极海藻的便中检测到一种新型的Deltacoronavirus,这表明迁徙鸟类之间可能存在跨物种传播. 这凸显了南极洲持续病毒监测的必要性,以保护其脆弱的生态系统.

科学领域:

病毒学和野生动物生态学
南极的生态系统和生物多样性

背景情况:

南极洲独特的环境和野生动物受到病毒传播的威胁.
迁徙鸟类可以作为病毒的载体,对脆弱的生态系统构成风险.

研究的目的:

调查南极野生迁徙鸟类中冠状病毒 (CoV) 和禽流感病毒 (AIV) 的存在.
描述任何检测到的病毒,并评估它们的跨物种传播潜力.

主要方法:

在南沙特兰群岛 (2023年1月至2月) 采集了各种南极鸟类的便样本.
使用RT-PCR协议对Covs和AIV进行查.
对于阳性CoV样本,使用了转基因组测序.

主要成果:

所有样本的AIV检测结果均为阴性.
一只海 (Larus dominicanus) 的便样本检测出冠状病毒阳性.
转录基因组测序确定了一个完整的Deltacoronavirus基因组,属于以前识别的野生鸟类类,这表明潜在的跨物种传播或广泛的宿主范围.

结论:

在曾经在企中发现的海藻中检测到的Deltacoronavirus表明,病毒在南极鸟类种群中可能传播.
对南极动物群的持续病毒监测对于了解病毒动态和保护脆弱生态系统至关重要.
这一发现强调了监测迁徙鸟类潜在的动物传染病威胁的重要性.

关键词:

南极地区的野生动物.积极监督是指积极的监督.环境便样本环境便样本病毒感染病毒感染动物传染病风险动物传染病风险

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