2010年的大多数病例都是出现在一些无小儿麻痹症的国家，这些国家由于对于疫苗注射麻痹结果导致病毒从边境传入。

The majority of cases in 2010 were in countries that had been polio-free until the virus travelled back across borders and caused outbreaks in areas where people had gotten lax about vaccination.

youdao

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.

youdao

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.

youdao

If you just introduced this polio virus, which you could make in large quantities into people now, you would be causing polio.

如果你直接接种脊髓灰质炎病毒,将大量的病毒直接接种到人体,就会引起小儿麻痹症

耶鲁公开课 - 生物医学工程探索课程节选

In the Sabin vaccine, or the oral polio vaccine, now you have a non-virulent virus.

在沙宾疫苗,即口服小儿麻痹症疫苗中,存在非致病性病毒

耶鲁公开课 - 生物医学工程探索课程节选

So, polio--the disease caused by polio can be a paralytic disease, crippling, and in some cases can lead to death if the disease progresses in certain ways.

小儿麻痹症便是由脊髓灰质炎病毒引起的,如果脊髓灰质炎发展到一定程度,患者不仅会瘫痪或者残疾,一些病例甚至可能死亡

耶鲁公开课 - 生物医学工程探索课程节选