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首页> 外文期刊>Revue de Medecine Veterinaire >Detection of avian Influenza virus H5N1 serotype in backyard poultry, wild and zoo birds in Pakistan
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Detection of avian Influenza virus H5N1 serotype in backyard poultry, wild and zoo birds in Pakistan

机译：在巴基斯坦的后院家禽，野生和动物园鸟类中检测禽流感H5N1血清型

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摘要

Highly pathogenic avian Influenza virus (HPAI) serotype H5N1 caused severe harm to the backyard poultry, wild and zoo birds along with commercial poultry population of Pakistan during 2006 to 2007. Outbreaks were evidenced by passive surveillance from2000 samples analysed over a period of 3 years by virus isolation and identification using haemagglutination tests, serology and RT-PCR in domestic backyard poultry (50.6%), wild (4.76%) and exotic pet birds (29.46%) and illustrated an alarming situation for the villagers and the domestic poultry keepers. An overall prevalence of 50.60% was obtained and this virus also infected a number of zoo birds near the outbreak epicenters such as duck (2.1%), common goose (1.19%), turkey (1.49%), peafowl (0.89%),ostrich (0.29%) and falcon (0.29%) and constituted the main cause of severe mortality in scavenger (4.76%) and other wild birds (8.93%) near these epicenters. Considering virus isolation and identification as the reference method, the agreement scores with serology and RT-PCR were high (> 95%) but RT-PCR exhibited the lowest sensibility (72.92%). However, no sero-conversion against H5N1 virus was found by active surveillance in the Punjab province, emphasizing in this way the necessity for a continuousvirological monitoring to avoid its spread in healthy populations of birds and human beings in close contact with infected birds.
机译：高致病性禽流感病毒H5N1血清型在2006年至2007年期间对巴基斯坦的后院家禽，野生和动物园鸟类以及商业家禽种群造成了严重伤害。通过在3年内对2000份样本进行的被动监测，证实了暴发利用血凝试验，血清学和RT-PCR对家禽后院家禽（50.6％），野生家禽（4.76％）和外来宠物鸟（29.46％）进行病毒分离和鉴定，这说明村民和家禽饲养者的情况令人震惊。总体流行率为50.60％，该病毒还感染了暴发震中附近的一些动物园鸟类，如鸭（2.1％），鹅（1.19％），火鸡（1.49％），孔雀（0.89％），鸵鸟（0.29％）和猎鹰（0.29％），是在这些震中附近的清道夫（4.76％）和其他野禽（8.93％）造成严重死亡的主要原因。以病毒的分离和鉴定为参考方法，血清学和RT-PCR的一致性得分较高（> 95％），但RT-PCR的敏感性最低（72.92％）。但是，在旁遮普省，没有通过主动监视发现针对H5N1病毒的血清转化，因此强调了进行连续病毒学监测以避免其在健康鸟类和与受感染鸟类密切接触的人类中传播的必要性。

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