Authors: Julia Marnin, McClatchy Washington Bureau June 7, 2022 Since late February, Americans who have gotten a booster shot appear to be testing positive for COVID-19 more often than those vaccinated without the extra shot, according to Centers for Disease Control and Prevention data. This is based on numbers up until the week of April […]
Authors: FDA The U.S. Food and Drug Administration (FDA) is alerting clinical laboratory staff and health care providers that false positive results can occur with antigen tests, including when users do not follow the instructions for use of antigen tests for the rapid detection of SARS-CoV-2. Generally, antigen tests are indicated for the qualitative detection […]
Diagnostic tests are used to detect current, active infections of the SARS-CoV-2 virus. Diagnostic tests can be antigen based (“rapid antigen” tests), which look for protein markers on the outside of the virus, or they can be molecular based (including PCR, LAMP, CRISPR), which look for viral genomic material specific to SARS-CoV-2. Molecular based tests that amplify […]
Authors: Ian W. Pray, PhD1,2,3,*; Laura Ford, PhD1,2,*; Devlin Cole, MD3,4; Christine Lee, PhD1,5; John Paul Bigouette, PhD1,2; Glen R. Abedi, MPH1; Dena Bushman, MSN, MPH1,2; Miranda J. Delahoy, PhD1,2; Dustin Currie, PhD1,2; Blake Cherney, MS1; Marie Kirby, PhD1; Geroncio Fajardo, MD1; Motria Caudill, PhD1,6; Kimberly Langolf, MS7; Juliana Kahrs, MS7; Patrick Kelly, MD4,8; Collin […]
Authors: CDC Summary of Recent Changes Updates as of May 13, 2021 Updated guidance based on new published studies on antigen test performance. Clarification about which NAATs should be used for confirmatory testing. Considerations for people who have had previous SARS-CoV-2 infections and those who have been fully vaccinated. Two new antigen testing algorithms, one […]