Swine flu viruses are thought to be spread mostly through close contact among pigs and possibly from contaminated objects moving between infected and uninfected pigs.

 
  • 猪流感病毒,估计主要是通过猪只间的紧密接触而被传播。亦可能经流动的污染物件,在已感染及未感染之猪只间传播。
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