Surveillance and Isolation of HPAI H5N1 from Wild Mandarin Ducks (Aix galericulata)
Surveillance and Isolation of HPAI H5N1 from Wild Mandarin Ducks (Aix galericulata)
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DOI：
10.7589/0090-3558-47.4.994
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发表时间：
2011-10-01
影响因子：
1.3
通讯作者：
Song, Chang-Seon
中科院分区：
文献类型：
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作者：
Lee, Dong-Hun;Park, Jae-Keun;Song, Chang-Seon
高致病性禽流感（HPAI） H5N1病毒在各种自由放养的野生鸟类中传播，并不断对动物和人类健康构成威胁。2010-2011年冬季，我们对韩国野生鸟类栖息地进行了调查。从728份新鲜粪便样本中鉴定出14种高致病性H5N1病毒。该分离株在系统发育上与最近从蒙古野生鸟类中分离到的其他2.3.2支高致病性H5N1病毒聚集在一起。所有hpai阳性粪便样本均采用DNA条形码进行宿主物种鉴定。14份hpai阳性标本中12份为鸳鸯（Aix pliculata）。高致病性H5N1亚型病毒在野生鸳鸯粪便中的高发病率是一项新发现，强调了加强对野生鸳鸯禽流感病毒监测的必要性。进一步调查鸳鸯对高致病性H5N1分支2.3.2病毒的易感性，有助于了解野禽高致病性生态学和流行病学。
Highly pathogenic avian influenza (HPAI) H5N1 virus circulates among a variety of free-ranging wild birds and continually poses a threat to animal and human health. During the winter of 2010-2011, we surveyed Korean wild bird habitats. From 728 fresh fecal samples, 14 HPAI H5N1 viruses were identified. The isolates phylogenetically clustered with other recently isolated clade 2.3.2 HPAI H5N1 viruses isolated from wild birds in Mongolia. All HPAI-positive fecal samples were analyzed by DNA barcoding for host-species identification. Twelve of the 14 HPAI-positive samples were typed as Mandarin Duck (Aix plericulata). The high incidence of HPAI subtype H5N1 viruses in wild Mandarin Duck droppings is a novel finding and underscores the need for enhanced avian influenza virus surveillance in wild Mandarin Ducks. Further investigation of the susceptibility of Mandarin Ducks to HPAI H5N1 clade 2.3.2 virus would aid the understanding of HPAI ecology and epidemiology in wild birds.