Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction–Based SARS-CoV-2 Tests by Time Since Exposure | Annals of Internal Medicine User Individual-Cupcake, in the COVID-19 subreddit, 30 Jun 2022
Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction–Based SARS-CoV-2 Tests by Time Since Exposure | Annals of Internal Medicine User polarbear314159, in the Coronavirus Freedom Of Speech subreddit, 02 Oct 2020
The false negative rate for COVID PCR testing is very high (from 100% to 68%) in the first 4 days after infection. User xeriscaped, in the Novel Coronavirus (COVID-19) subreddit, 22 Aug 2020
False negative rates of PCR for COVID are dependent on how long after exposure the test is performed. From 100% false negative rate at day 1 to 68% at day 4. The lowest false negative rate (20%) is at day 8. User xeriscaped, in the Meddit, a community for the study and discussion of medicine subreddit, 22 Aug 2020
Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction–Based SARS-CoV-2 Tests by Time Since Exposure | Annals of Internal Medicine User alfentazolam, in the Anaesthesia: sleep for surgery subreddit, 08 Aug 2020
Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction–Based SARS-CoV-2 Tests by Time Since Exposure | Annals of Internal Medicine User LSARefugee, in the UglyHumanity subreddit, 02 Jul 2020
Testing people for SARS-CoV-2 too early in the course of infection is likely to result in a false negative test User nibaneze, in the Reddit Science subreddit, 10 Jun 2020
Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction–Based SARS-CoV-2 Tests by Time Since Exposure User smaskens, in the COVID-19 subreddit, 14 May 2020