• 1. avian flu: 禽流感
• 2. avian flu virus: 禽流感病毒

• 1.Avian flu is just one example.
  禽流感只是一个例子。
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• 2.We have been experiencing a relentless spread of avian flu.
  我们一直在经历禽流感持续不断的传播。
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• 3.How does swine flu compare with avian flu as a pandemic threat?
  同是疫病威胁，猪流感与禽流感相比如何？
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