influenzan.流行性感冒Influenza-like illness流行性感冒样病Influenza virus A equine马甲型流感病毒Influenza with pneumonia流行性感冒伴肺炎influenzal conjunctivitis流感性结膜炎Influenza virus A porcine猪甲型流感病毒Influenza virus A hominis人甲型流感病毒influenza virus isolation流感病毒分离influenza subunit vaccine流感亚型疫苗influenza virus pneumonia流感性肺炎influenza virus receptors流感病毒受体