Turns out during all 4 epidemics prior to COVID-19 since 2000, CDC & WHO were concerned about the high false-positive rates for PCR tests & issued guidelines to try and minimize them. But for C19, both somehow forgot all about PCR false-positive rates.🤔https://t.co/XC4w46G62V pic.twitter.com/xfxXedyt9j
— Michael Thau (@MichaelThau) August 30, 2020