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1·That allowed the polio virus to strengthen and spread.

这些都是小儿麻痹症的病毒不断加强和传播。

2·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。

3·In 2002, researchers in New York created a synthetic polio virus.

2002年，纽约的研究人员人工合成出脊髓灰质炎病毒。

4·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。

5·We have already eradicated one of the three strains of wild polio virus.

我们已经根除了三种野生脊灰病毒菌株之一。

6·Researchers are using the polio virus to fight cancer cells in the brain.

研究人员正在利用脊髓灰质炎病毒来对抗大脑中的癌细胞。

7·Every year, hundreds of thousands of cases due to wild polio virus are prevented.

每年，由野生脊灰病毒引起的数十万病例得到预防。

8·The polio virus persists in the throat for about 1 week, and in the feces for 3 to 6 weeks or longer.

脊髓灰质炎的病毒可在喉部存活约1周，在排泄物中存活3至6周或更长。

9·A team at the State University of New York, in Stony Brook, had made a copy of the polio virus the previous year.

前一年，纽约州立大学石溪分校的一个小组复制了脊髓灰质炎病毒。

10·Sudan had been polio-free since two thousand five. The new case of wild polio virus was confirmed last month in South Darfur.

因为新的脊髓灰质炎病例上个月在South Darfur被证实，而苏丹自2005年就没发现过此类病例。