Some people also have mild respiratory symptoms at the outset.
一些人在刚开始时也会有轻微的呼吸道感染症状。
Some people also experience mild respiratory symptoms at the outset.
有些病人最初还出现轻度呼吸系统的症状。
The virus is a type a influenza virus that causes mild to severe respiratory symptoms that, if bad enough, can result in death.
猪流感病毒属于A型流感病毒，能够引起从轻微到重度的呼吸道症状，如果症状严重到一定程度便可以造成死亡。
Conclusion Mild acute respiratory infection is highly infective and has a quick transmission, but the virulence of pathogens is relatively weak and hence symptoms are not serious.
结论此类轻型急性呼吸道感染症传染性强，传播速度快，但病原体毒力较弱，症状较轻。
Conclusion Mild acute respiratory infection is highly infective and has a quick transmission, but the virulence of pathogens is relatively weak and hence symptoms are not serious.
结论此类轻型急性呼吸道感染症传染性强，传播速度快，但病原体毒力较弱，症状较轻。
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