We didn't have the same methods of diagnosis that we do now, so maybe it was just not diagnosed then.

那时医生的诊断手段远不及现在,因此,这些病可能只是诊断不出来

耶鲁公开课 - 生物医学工程探索课程节选

That there is nothing impossible that we can provide some new hope for these patients.

没有什么是不可能的,我们能够给予这些病新的希望。

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But it could also be that it wasn't as easily diagnosed then.

这也同样有可能因为,在那个年代这种病不容易诊断出来

耶鲁公开课 - 生物医学工程探索课程节选

they might not know what it was?

当时的人们可能不知道这种病是什么

耶鲁公开课 - 生物医学工程探索课程节选

There weren't people that got infected, like you can get infected with hepatitis B or tuberculosis, and not even know you're infected.

这不像人们感染了,像B型肝炎或者肺结核这类病时,都有可能不知道自己被感染了

耶鲁公开课 - 生物医学工程探索课程节选