2023年,H5N1禽流感在阿根廷的Península Valdés杀死了几乎所有海豹幼崽和许多成人,这标志着鸟类对海洋哺乳动物的致命扩散。 In 2023, H5N1 avian flu killed nearly all seal pups and many adults in Argentina’s Península Valdés, marking a deadly spillover from birds to marine mammals.

2023年,一场致命的H5N1禽流感病毒爆发,摧毁了阿根廷Península Valdés的南部大象海豹聚居地,几乎杀死了所有海豹幼崽和许多成年人。 In 2023, a deadly outbreak of the H5N1 avian influenza virus devastated a southern elephant seal colony on Argentina’s Península Valdés, killing nearly all seal pups and many adults. 以前在鸟类中看到的病毒跳跃到海洋哺乳动物身上,在沿海通过持续的哺乳动物到哺乳动物传染传播传播,造成前所未有的死亡。 The virus, previously seen in birds, jumped to marine mammals and spread through sustained mammal-to-mammal transmission along the coast, causing unprecedented mortality. Pup存活率从2022年的4 145人下降到2023年的135人,繁殖行为和社会结构普遍受到干扰。 Pup survival dropped from 4,145 in 2022 to just 135 in 2023, with widespread disruption to breeding behaviors and social structures. 科学家说,气候变化、生境损失和人类活动正在增加此类溢出事件的风险,对野生动物和公共健康构成日益严重的威胁。 Scientists say climate change, habitat loss, and human activity are increasing the risk of such spillover events, posing growing threats to wildlife and public health.