That's not true at all. The tests cannot differentiate between different viruses. The PCR test only looks for a small segment of rna that is supposed to be from sars cov 2, but since so few labs have actualy isolated it, there is little confirmation that this segment actually comes from sars cov 2, and no way to prove that it is specific to sars cov 2. You may be talking about the amplification cycles, which is another problem with PCR tests done from the start through Biden's inauguration. The fact that the amp cycles were too high is another reason doubt the numbers throughout all of last year. Even the NY Times ran an article that explained that the PCR tests were yielding up to 90% false positives.
The fact that they fixed the overcycling issue doesn't change the other reliability issues with the PCR test, which is exactly why they are phasing it out. The antigen tests have already had their EUA revoked. The only reason the pcr hasn't been revoked is because they have nothing else.
I should be annoyed that I have to explain all this, but I can be patient to a fault sometimes.
