他在实验的家属身上装上了人的受体来接受小儿麻痹症病毒。
He is fitting mice with the human receptor for the polio virus.
这就意味着，当瘫痪病例被发现时，小儿麻痹症病毒已经扩散了。
This means by the time a paralytic case is found, the poliovirus has probably spread.
小儿麻痹症病毒是通过与被感染的个体亲密接触而传染的，但很少通过食物和水传染。
Polio is spread by close contact with infected individuals, but rarely by food or water.
小儿麻痹症病毒是通过与被感染的个体亲密接触而传染的，但很少通过食物和水传染。
Polio is spread by close contact with infected individuals, but rarely by food or water.
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