By April 25, 2020 many studies [1] and data observations revealed that SARS-CoV-2 infections amongst the US population was much higher than estimated. Many people tested PCR positive but had no symptoms.
The late 2019 “flu season” in the US was high in incidence and many tests came back negative for influenza. Is it possible SARS-CoV-2 was already circulating in the US population in late 2019, and the positive PCR’s were the result of high test amplifications greater than 35 cycles which were just picking up “dead nucleotides“, possibly left from a recent past infection?