This is terrific reading.  Skeptics will use the date of the material as an excuse, but it's just not so - not an excuse, so to speak.  You gotta read the whole thing to know what I'm talking about, though.  Great reading, believe me.

Quote from the article at the link below:

“Many of the new molecular [PCR] tests are quick but technically demanding, and each laboratory may do them in its own way. These tests, called ‘home brews,’ are not commercially available, and there are no good estimates of their error rates. But their very sensitivity makes false positives likely, and when hundreds or thousands of people are tested, as occurred at Dartmouth, false positives can make it seem like there is an epidemic.

“’You’re in a little bit of no man’s land,’ with the new molecular [PCR] tests, said Dr. Mark Perkins, an infectious disease specialist and chief scientific officer at the Foundation for Innovative New Diagnostics, a nonprofit foundation supported by the Bill and Melinda Gates Foundation. ‘All bets are off on exact performance’.”

“With pertussis, she [Dr. Kretsinger, CDC] said, ‘there are probably 100 different P.C.R. protocols and methods being used throughout the country,’ and it is unclear how often any of them are accurate. ‘We have had a number of outbreaks where we believe that despite the presence of P.C.R.-positive results, the disease was not pertussis,’ Dr. Kretsinger added.”

“Dr. Cathy A. Petti, an infectious disease specialist at the University of Utah, said the story had one clear lesson.”

“’The big message is that every lab is vulnerable to having false positives,’ Dr. Petti said. ‘No single test result is absolute and that is even more important with a test result based on P.C.R’.” "

https://blog.nomorefakenews.com/2020/07/29/another-failure-of-the-covid-diagnostic-test/