Here is an accurate Chemical Testing explanation of: 1) the mechanics if a swab taken & PCR Covid Tested 2) how lab instrument is calibrated3) Why a PCR test is wildly inaccurate and can in NO circumstances accurately diagnose a Covid patient . . . Also the COVID Virus has NEVER been isolated -- PCR test will reacts to almost ANY substance. The PCR inventor Dr K Mullis declared that NO Viral load can be measured . . .
https://www.brighteon.com/b91f0a0a-3906-4061-a782-9207c76dc3c4