They develop a fever and a watery discharge from their eyes.
他们开始发烧,且有一种水状分泌物从他们的眼睛里流出。
And in up to half of all cases, people never develop a fever.
而且在目前的已知病例中,有一半从来都没有发烧的症状。
Up to half the people who get swine flu never develop a fever, and some suffer from gastrointestinal.
有多达一半的猪流感患者并不发烧,而有些人除了常规的流感症状还出现了胃肠症状。
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