evidence: Yohe S. College of American Pathologists: How good are COVID-19 (SARS-CoV-2) diagnostic PCR tests? https://www.cap.org/member-resources/articles/how-good-are-covid-19-sars-cov-2-diagnostic-pcr-tests#:~:text=Summary,and%2098%2D99%25%20specificity. Accessed 22 Sept 2020.