PCR test when cycled toward a certain number just to gain accuracy yet loses its accuracy when cycled too much: PCR can only detect active infection. Some COVI

PCR test when cycled toward a certain number just to gain accuracy yet loses its accuracy when cycled too much: PCR can only detect active infection. Some COVID PCR tests have fairly bothersome false positive and false negative percentage (enough to make its own statistic to be that 3rd axiom (of lies, damn lies, and …): it’s the bane of shifty government policies that is being based on this type of test, PCR. Antibody test detects past and current infection through T-cell memory of past encounters and that too is limited by how long the “learned” imprint of the virus can last (as short as 6-month by some “peer-reviewed” papers on COVID antibody memory. I would be most pressed to see what this aspect of duration of COVID-related T-cell memory turn out to be (but these data are sparse and not quite available to most of us). Antibody is the costlier test of two (also not being more used toward formulation of government policies as I think they should be). Whereas, Smallpox, DTP and polio vaccine memory have established their multi-decade reliability.