又称“脊髓灰质炎”，是由脊髓灰质炎病毒引起的急性传染病。脊髓灰质炎一般多发生于小儿，部分患者可发生驰缓性神经麻痹，故称“小儿麻痹症”【医】polio

• 他刚满两个月大时，就患上小儿麻痹症。

  He contracted polio when he was just two months old.

• 这个三岁的小姑娘患上一场感冒，结果落下小儿麻痹症。

  This three year old girl caught a cold and ended up with polio.