Kary Banks Mullis biochemist. In recognition of his invention of the PCR test, he shared the 1993 Nobel Prize in Chemistry. With PCR test if you do it well, you can find almost anything in anybody

On the following video, Kary Mullis explaining how PCR works.

 “I think misuse PCR is not quite, I don’t think you can misuse PCR. The results, the interpretation of it, if they could find this virus in you at all, and with PCR, if you do it well, you can find almost anything in anybody. It starts making you believe in the sort of Buddhist notion that everything is contained in everything else. Right, I mean, because if you can amplify one single molecule up to something which you can really measure, which PCR can do, then there’s just very few molecules that you don’t have at least one single one of them in your body, okay. So that could be thought of as a misuse of it, just to claim that it’s meaningful.”

“It’s [PCR] just a process that’s used to make a whole lot of something out of something. That’s what it is. It doesn’t tell you that you’re sick and it doesn’t tell you that the thing you ended up with really was going to hurt you or anything like that.”

-Kary Mullis