No FDA approved PCR tests so far for newer SARs CoV 2 variants..
It seems the FDA have yet to approve for conditional use any of the PCR reagents being used for older SARs Cov2 variants. Some pick them up, but most dont.
There are no authorized, cleared, or approved diagnostic tests to specifically detect SARS-CoV-2 variants (Omicron or other variants). Currently, COVID-19 tests are designed and authorized to check broadly for the SARS-CoV-2 virus, not for specific variants.
The standard PCR test tested for the presence of three molecular patterns that should be unique to SARs CoV 2. Only if all three match is it considers a positive. The best match pattern was the S protein which is where the recent variant mutations are.
Labs it seems are now considering a two match a positive. Which is why the positive rate has gone up so much. With a two match the sensitivity and specificity drops markedly which means that for mass screening the false positive rate must be close to 99% by this stage.
Given that the S protein was the only long high probability unique molecular match pattern for SARs Cov 2. And the other two match patterns were bases on a search of the genomic database for sequences that dont appear in other viruses. I decided to look up the database for just how much effort was put into tracking the other human corona virus (HCOV) variants
This the entry for SARs CoV2
Lost of data on variants.
Here is how much they have for 229E and OC43.
Basically nothing in comparison.
All four general circulation HCOVs's have been spinning off variants at the same rates as SARs Cov2. Every few weeks to months. So as a rough estimate over 99% of all HCOV variants of the last few decades are not in the genomic databases.
Which makes the analytical accuracy PCR test even in a high prevalence clinical setting very problematic. If there is so little genomic data for even the closest relatives to SARs CoV 2
After all this time, and you making repeated claims about false positive rate, you still haven't looked up the definition of false positive rate.
Go on have a look.. it will tell you that such 99% a claim is incompatible with the definition and the regular results of mass screening using PCR.
I tell you what,, I'll tell you the definition....
FPR = false positives / (All negatives)
Have a big think and see why you are wrong..
But you still have not shown how your claim of false positive rate can be true.
You spout on about basic maths, but never do any.
Quite simply... how can your claim of FPR be true. Using actual definition and results and actual maths.
Your attempts so far have avoided these. You claim to be a high level mathematician (amongst other things) so give it a go.