Koprowski's experimentation created the first oral polio vaccine, or OPV, using a live weakened version of the virus.

科普罗夫斯基的实验创造了第一种口服脊髓灰质炎疫苗，OPV，使用的是活的弱化版脊髓灰质炎病毒。

Since then nine billion oral polio vaccines have prevented nearly two million cases of wild polio virus on the continent.

自那时以来，90亿口服脊髓灰质炎疫苗预防了非洲大陆近200万例野生脊髓灰质炎病毒病例。

" This is the oral polio vaccine. That's 10 doses and this thing costs $1.30, so 13 cents per kid , " said Gates.

“这是口服的小儿麻痹疫苗，是10计量，价格1.3美元，所以每个孩子13美分。”

The vaccine that eradicated polio in the US, the oral polio vaccine, transmits between people.

在美国根除小儿麻痹症的疫苗，即口服小儿麻痹症疫苗，会在人与人之间传播。

In fact, oral polio vaccine faced such an effective misinformation campaign that most people still don't know that it transmits, that it successfully eradicated polio in many countries or that this vaccine is the basis for new vaccines.

事实上，口服脊髓灰质炎疫苗面临如此有效的错误宣传运动， 以至于大多数人仍然不知道它会传播，它在许多国家成功根除了脊髓灰质炎， 或者这种疫苗是新疫苗的基础。