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通过对南极海鸟种群的地理调查,追踪HPAIV H5

Fabiola León^1,2,3, Céline Le Bohec^4,5,6, Eduardo J Pizarro^1,2,3

¹Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.

Scientific reports

|August 12, 2025

概括

高致病性禽流感病毒 (HPAIV) H5在南极半岛的阿德利企和南极蓝眼身上被检测到. 这标志着最南端的疑似HPAIV H5病例,可能感染新物种.

科学领域:

病毒学病毒学
生态生态学生态生态学
野生动物健康野生动物健康

背景情况:

高致病性禽流感病毒 (HPAIV) 对全球的鸟类种群构成重大威胁.
众所周知,海鸟是禽流感病毒的储存体和潜在传播者.
对于南极海鸟种群中的HPAIV存在有限的监测数据.

研究的目的:

为了在南极海鸟物种中检测HPAIV H5进行广泛的调查.
为了确定潜在的新宿主物种和HPAIV在南极洲的地理传播.
报告迄今为止最南端的HPAIV H5疑似病例.

主要方法:

现场调查于2023年12月至2024年1月期间在13个繁殖地点进行.
采样范围从南极半岛到罗斯海,包括贝林斯豪森和阿蒙森海.
针对HPAIV的H5段的RT-PCR放大用于检测.

主要成果:

来自Pygoscelis adeliae和Leucocarbo bransfieldensis的9名个人对HPAIV H5.5的检测结果呈阳性.
在南极半岛的两个不同的地点确定了阳性病例.
在南极半岛和罗斯海之间进行的调查中没有发现HPAIV H5病例.

结论:

这项研究报告了南极大陆首个疑似HPAIV H5病例.
Pygoscelis adeliae和Leucocarbo bransfieldensis可能代表了两种被HPAIV H5.5感染的新物种.
这些发现强调了HPAIV监测的最南端检测,并强调了在极地地区继续监测的必要性.

关键词:

在南极洲,南极洲是南极洲.禽流感是禽流感的一种.珊瑚是一只巨大的鱼类.企,就是一个企.海洋鸟类海洋鸟类

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