Sure, there have been scientists with Professor McAfee's attitude - Jonas Salk was asked who owned the patent to the polio vaccine and scoffed: "Could you patent the sun?"

当然，也有科学家持有mcafee教授的观点——有人问乔纳斯·索尔克谁谁拥有脊髓灰质炎疫苗的专利并嘲笑他：你能拥有太阳的专利吗？

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Several years ago, when I was writing a book about the polio vaccine, I had the opportunity to spend months wading through the personal papers of Jonas Salk.

几年前，当我正在写一本关于小儿麻痹症的疫苗的书时，我有幸花了几个月来研读Jonas Salk的个人论文。

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Jonas Salk used these HeLa cells to test the first vaccine for polio.

VOA: special.2010.07.21

Doesn't respond as well to killed vaccines, and that's why the Salk vaccine has to be injected at a high dose.

但却对灭活的疫苗没有那样强烈反应,这也是索尔克氏疫苗为何,必须大剂量注射的原因

耶鲁公开课 - 生物医学工程探索课程节选

So, this is the stage at which you prevent disease in the Salk vaccine.

那么,这就是索尔克氏疫苗,防止疾病传播的方法

耶鲁公开课 - 生物医学工程探索课程节选

Salk vaccine receivers can still transmit the virus, whereas the Sabin ones do not.

FORBES: How Much Money Did Jonas Salk Potentially Forfeit By Not Patenting The Polio Vaccine?

It came to replace the Salk vaccine in many places between 1963 and 1999, according to the Smithsonian.

CNN: Why polio hasn't gone away yet

When the Salk vaccine came out, people celebrated, he said.

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