From Genome.gov "PCR Fact Sheet": The Polymerase Chain Reaction test works by amplifying, or copying, DNA in order to test for it. It is also called "molecular photocopying". PCR can…
NOTE: Due to heavy censorships links are not guaranteed to still be there. 2020-1031. Covid-19 PCR Testing is Worthless: Even the New York Times finally admits it. http://freerepublic.com/focus/f-news/3900464/posts (This link…