The whole treating PCR tests as "You have $x" is the heart of the problem, and Fauxi is simply using it as a crutch for whatever he's been paid to do.

A positive result on a PCR test is no more indicative you have the disease than those home colon cancer screening kits say with certainty that you have colon cancer. It's merely an indicator that further testing is necessary with more analytical means.

I have to admit, seeing the chaos caused by a simple scientific indicator is quite amusing in a sad way.

There was a time when snake oil salesmen were tarred and feathered and run out of town on a rail.