"Health experts can use PCR tests as a quick, accurate way to diagnose infectious diseases..."

Thanks for all of your help today, but I went ahead and consulted the experts. Gonna file this one under CASE CLOSED. SOLVED. 97.2% Effective at diagnosing Covid-19. 👍

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

PCR testingTrusted Source allows researchers to make many copies of a small section of DNA or RNA, in a process that some call “molecular photocopying.”

This t…