Avian influenza viruses (AIVs) have been identified from more than 100 different species of wild birds around the globe. Wild migratory birds can act as potential spreaders for AIVs to domestic birds between different countries. Egypt is situated on important migratory flyways for wild birds between different continents. While much is known about circulation of zoonotic potential H5N1 and H9N2 AIVs in domestic poultry in Egypt, little is known about the pivotal role of migratory birds in the maintenance and transmission of the viruses in Egypt. Targeted AIV surveillance has been conducted in 2017 in different wetlands areas in Northern and Eastern Egypt. AIV of subtype H5 was detected in two bird species. In addition, a novel reassortant strain of the H6N2 subtype was identified which reveals the continuous risk of new influenza virus(es) introduction into Egypt. This novel virus possesses a reassortant pattern originating from different AIV gene pools. Intervention control strategies should be performed to minimize the possible contact of domestic birds with wild birds to lower the risk of virus transmission at this interface. In addition, constant monitoring of AIVs in migratory birds is essential in the early detection of influenza virus introduction into Egypt.

中文翻译：

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在埃及候鸟中进行的禽流感病毒监视揭示了一种新型重配的H6N2亚型

已从全球100多种不同的野生鸟类中鉴定出禽流感病毒（AIV）。野生候鸟可作为AIV向不同国家之间的家禽传播的潜在传播者。埃及位于重要的候鸟迁徙路线上，是各大洲之间的野生鸟类。尽管人们对埃及人家禽中人畜共患病的H5N1和H9N2 AIV的流通知之甚少，但对于候鸟在埃及病毒的维持和传播中的关键作用知之甚少。2017年，在埃及北部和东部的不同湿地地区进行了有针对性的AIV监测。在两种鸟类中检测到H5亚型的AIV。此外，鉴定出一种新型的H6N2亚型重配株，该株揭示了将新流感病毒引入埃及的持续风险。这种新型病毒具有源自不同AIV基因库的重配模式。应采取干预措施控制策略，以尽量减少家禽与野禽的接触，以降低在此界面传播病毒的风险。此外，对迁徙禽类中的禽流感病毒进行持续监测对于及早发现埃及引入的流感病毒至关重要。