Swine influenza (swine flu) is an acute viral infection of the respiratorytract in pigs caused by type A influenza virus.
猪流感是一种发生在猪身上的高度传染性急性呼吸道疾病,由A型流感病毒引起。
2
An upper respiratorytractinfection may precede all other symptoms in as many as 68.8% of patients.
l 68.8%的患者在所有症状之前有上呼吸道感染。
3
Orbital cellulitis typically presents with fever and an erythematous, swollen, tender eyelid with a recent history of sinusitis or upper respiratorytractinfection.