Iceland: an underestimated hub for the spread of high-pathogenicity avian influenza viruses in the North Atlantic

IF 3.6 4区医学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of General Virology Pub Date : 2024-05-02 DOI:10.1099/jgv.0.001985

Ann Kathrin Ahrens, Stefán Ragnar Jónsson, Vilhjálmur Svansson, Brigitte Brugger, Martin Beer, Timm C. Harder and Anne Pohlmann

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引用次数: 0

Abstract

High-pathogenicity avian influenza viruses (HPAIVs) of the goose/Guangdong lineage are enzootically circulating in wild bird populations worldwide. This increases the risk of entry into poultry production and spill-over to mammalian species, including humans. Better understanding of the ecological and epizootiological networks of these viruses is essential to optimize mitigation measures. Based on full genome sequences of 26 HPAIV samples from Iceland, which were collected between spring and autumn 2022, as well as 1 sample from the 2023 summer period, we show that 3 different genotypes of HPAIV H5N1 clade 2.3.4.4b were circulating within the wild bird population in Iceland in 2022. Furthermore, in 2023 we observed a novel introduction of HPAIV H5N5 of the same clade to Iceland. The data support the role of Iceland as an utmost northwestern distribution area in Europe that might act also as a potential bridging point for intercontinental spread of HPAIV across the North Atlantic.

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冰岛：被低估的北大西洋高致病性禽流感病毒传播中心

鹅/广东系高致病性禽流感病毒（HPAIV）在全球野鸟种群中流行。这增加了病毒进入家禽生产领域并蔓延到包括人类在内的哺乳动物物种的风险。更好地了解这些病毒的生态学和动物流行病学网络对于优化缓解措施至关重要。根据 2022 年春季至秋季期间从冰岛采集的 26 份 HPAIV 样本以及 2023 年夏季采集的 1 份样本的全基因组序列，我们发现 2022 年冰岛野鸟种群中流行着 3 种不同基因型的 HPAIV H5N1 支系 2.3.4.4b。此外，在 2023 年，我们还观察到同一支系的 HPAIV H5N5 新传入冰岛。这些数据支持冰岛作为欧洲最西北分布区的作用，它也可能成为高致病性禽流感跨北大西洋洲际传播的潜在桥梁。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of General Virology 医学-病毒学

CiteScore

7.70

自引率

2.60%

发文量

审稿时长

3 months

期刊介绍： JOURNAL OF GENERAL VIROLOGY (JGV), a journal of the Society for General Microbiology (SGM), publishes high-calibre research papers with high production standards, giving the journal a worldwide reputation for excellence and attracting an eminent audience.