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Avian influenza in backyard poultry of the Mopti region, Mali

机译：马里莫普提地区的后院家禽中的禽流感

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摘要

This study reports the first evidence of circulation of avian influenza viruses (AIV) in domestic poultry in Mali. In the Mopti region, where AIV have already been isolated in migratory water birds, we sampled 223 backyard domestic birds potentially in contact with wild birds and found that 3.6% had tracheal or cloacal swabs positive by real-time reverse transcription PCR (rRT-PCR) for type A influenza viruses (IVA) and that 13.7% had sera positive by commercial ELISA test detecting antibodies against IVA. None of the birds positive by rRT-PCR for IVA was positive by rRT-PCR for H5 and H7 subtypes, and none showed any clinical signs therefore indicating the circulation of low pathogenic avian influenza. Unfortunately, no virus isolation was possible. Further studies are needed to assess the temporal evolution of AIV circulation in the Mopti region and its possible correlation with the presence of wild birds.
机译：这项研究报告了马里家禽中禽流感病毒（AIV）传播的第一个证据。在已经在迁徙水禽中分离出AIV的莫普提地区，我们对223只可能与野生鸟类接触的后院家禽进行了采样，发现3.6％的实时逆转录PCR（rRT-PCR）气管或泄殖腔拭子呈阳性）的A型流感病毒（IVA），通过商业ELISA测试检测到抗IVA抗体的血清中有13.7％呈阳性。通过rRT-PCR对IVA呈阳性的家禽，没有一个通过rRT-PCR对H5和H7亚型呈阳性，也没有任何临床体征，因此表明低致病性禽流感的流行。不幸的是，无法隔离病毒。需要进一步的研究来评估莫普提地区AIV循环的时间演变及其与野生鸟类存在的可能关系。

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