He is fitting mice with the human receptor for the polio virus.
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。
Most of the world has stopped the spread of the polio virus.
小儿麻痹症已经在世界的大部分地区停止传播了。
In very rare cases the virus can change and cause polio.
在极其少见情况下，病毒变化并且导致脊髓灰质炎。
In very rare cases the virus can change and cause polio.
在极其少见情况下，病毒变化并且导致脊髓灰质炎。
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