Fortunately, the swine flu that we're seeing still is a moderate disease that is behaving very much like ordinary seasonal influenza.
幸运的是，令人关注的猪流感病毒目前仍很温和，它与普通的季节性流感十分相似。
Swine flu is a respiratory disease affecting pigs that is caused by type a influenza virus.
猪流感是由猪流感病毒引起的一种急性呼吸道传染病。
Swine flu is a respiratory disease of pigs caused by influenza viruses that causes regular outbreaks in pigs.
猪流感是一种发生在猪身上的呼吸道传染病，由流感病毒引起，经常在猪群中爆发。
Swine influenza is a respiratory disease of pigs caused by type a influenza that regularly causes outbreaks of influenza among pigs.
猪型流感是一种不时会在猪只间引起流感爆发的甲型流感猪只呼吸道疾病。
Although swine influenza viruses are normally species specific and only infect pigs, they do sometimes cross the species barrier to cause disease in humans.
这能导致一个流感病毒包含许多来源的基因，称为重组病毒。一般来说，猪流感病毒存在种属特异性、只感染猪，但有时确实能跨越种群屏障引起人类发病。
Although swine influenza viruses are normally species specific and only infect pigs, they do sometimes cross the species barrier to cause disease in humans.
这能导致一个流感病毒包含许多来源的基因，称为重组病毒。一般来说，猪流感病毒存在种属特异性、只感染猪，但有时确实能跨越种群屏障引起人类发病。
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