The Salk Vaccine is also called the Killed Polio Vaccine, and some people call it KPV, also sometimes called Inactivated Polio Vaccine, IPV, but this is the vaccine I just talked about produced by Salk.

索尔克氏疫苗也叫灭活脊髓灰质炎疫苗,有人将其简称为KPV 有时也被称作,失活脊髓灰质炎疫苗,简称IPV,这个疫苗由索尔克研发,刚才讲过他

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