In rare cases, humans contract swine flu from close contact with pigs.
在很少一些案例中，人类因与猪密切接触而感染猪流感。
How does swine flu spread among pigs?
猪流感在猪群中如何传播？
But for birds and pigs, it's flu season year round.
不过对于禽类和猪来说，它们的流感季节是一年四季的。
What are signs of swine flu in pigs?
被感染了猪流感的猪有何症状？
Is the Swine Flu now affecting humans the same as in pigs?
目前感染人的猪流感病毒与猪之间的病毒是一样吗？
Swine flu is a respiratory disease which infects pigs.
猪流感是能使猪染病的呼吸道疾病。
The H1N1 strain of swine flu is usually associated with pigs.
猪流感病毒的变异之一HINI通常和猪有关。
Like humans, pigs get the flu.
和人一样，猪也会得流感。
Swine flu viruses that cause disease in pigs very rarely affect humans.
通常情况下，人类很少感染猪流感病毒。
Swine flu viruses that cause disease in pigs very rarely affect humans.
通常情况下，人类很少感染猪流感病毒。
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