So you have no interest in determining whether a something detected at 40 cycles is actually a health threat, you just want to mindle$$ly crank out numbers and pretend you have discovered a deadly asymptomatic infection?
What PCR can tell you is whether or not there is viral nucleic acid (RNA) present. What it cannot tell you is whether that viral RNA is present because of an early pre-symptomatic infection, because of an active symptomatic infection, or because there is still viral RNA present weeks or months after an infection.
Please stop demonstrating how little you know about PCR or the diagnosis of infectious disease. Please.