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First Positive Detection of H9 Subtype of Avian Influenza Virus Nucleic Acid in Aerosol Samples from
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目的 了解巴中市辖区内活禽交易市场环境禽流感污染状况,为制定人感染禽流感防控方案提供依据.方法 集中采集市辖5个县区全部活禽......