[2aProtectsTheRest]

"If your claim is correct, then how is it there have been so many documented cases of false positives for SARS-CoV-2?"

Two things:

1. False positive means something caused a test to show positive in a sample that should test negative. That something can be contamination from other sources containing things that never should have been in the sample and thus are beyond the scope of the testing. For example, if I dip a test strip in a strong acid, that may trigger a positive result. Since you should never have a bunch of acid in your nasal cavity, that's beyond the scope of proper testing procedure.
2. The linked article is about antigen tests. That's not the same as the RT-PCR test which is considered the "gold standard" and is used as part of the CDC's case definition for COVID-19. The rapid antigen tests are known to be less accurate, but they're quick and cheap. Those are the tests that gave Elon Musk contradictory results. The RT-PCR test confirmed he was actually positive.

[marktwain]

Even the RT-PCR tests have some false positives.

As is typical for laboratory tests, RT-PCR tests are not 100 per cent accurate, with one risk being false positives, when people are told they have the virus when they do not, which may cause them to isolate unnecessarily.

[logi_cal869]

You undermine the totality of your statements with “gold standard” and “confirmed” referencing PCR testing.

It has already been firmly established that,

1. PCR testing is NOT a diagnostic tool for infection,
2. PCR tests trigger positive on dead virus,
3. PCR tests have been manipulated by raising the cycle threshold, resulting in high numbers of positive tests,
4. PCR positive tests have been used to confer a ‘COVID’ cause of death in the absence of illness,
5. PCR tests remain preeminent only because they demonstrate results which can be used to promote the crisis.

The next tests - saliva or otherwise - will demonstrate a contradiction that escapes rational explanation and, thusly, will be tightly controlled until such a time their results are politically viable.