【registration charges in bangalore】南极野生动物中发现禽流感
中新网北京9月4日电 (记者 孙自法)施普林格·自然旗下学术期刊《自然-通讯》最新发表一篇病毒学研究论文称,南极研究人员在南极地区的野生不同鸟类和哺乳动物物种中检测到H5N1禽流感病毒,包括在黑眉信天翁和南极毛皮海狮中。动物registration charges in bangalore该发现表明,现禽禽流感疾病影响的流感地理范围正在扩张,并对南极这一偏远地区产生潜在的南极生态影响以及对野生动物带来威胁。 据论文介绍,野生南极因其独特的动物生态系统而闻名,是现禽registration charges in bangalore重点保育对象,一直不受那些侵袭全球其他地区野生动物的流感多种传染病的影响。不过,南极近期发现显示,野生H5N1打破了这种隔离,动物感染了多种动物。现禽 论文第一作者兼共同通讯作者、流感英国动植物卫生署Ashley C. Banyard和同事及合作者一起,在2022年至2023年夏季对南极以及亚南极地区岛屿上的动物进行了大规模采样和监测。他们在多个鸟类物种(包括棕贼鸥、南乔治亚鸬鹚、南极燕鸥)以及海洋哺乳动物(包括南象海豹)中发现了H5N1。 进一步遗传学分析提示,H5N1禽流感病毒存在来自南美洲的潜在引入途径,可能是通过迁徙鸟的移动传播,并显示该病毒在亚南极地区岛屿上的不同物种和地区迅速扩散。不过,本次研究采样中,一只王企鹅和一只凤头黄眉企鹅在接受检测时未感染该病毒。 论文作者认为,这项研究结果有助于理解H5N1对南极当地野生动物种群的影响,并引发了对野生动物感染当地之前没有的疾病的担忧。他们指出,进一步研究可探索病毒在该生态系统内的传播、潜在的防范措施,并监测后续传播以保护这些生态系统。因此,未来有必要开展持续监测和生物安全措施,以降低禽流感病毒对南极等偏远地区野生动物的威胁。
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