Performance of Repeat BinaxNOW Severe Acute Respiratory Syndrome Coronavirus 2 Antigen Testing in a Community Setting, Wisconsin, November 2020–December 2020
Melisa M. Shah, Phillip P. Salvatore, Laura Ford, Emiko Kamitani, Melissa Whaley, Kaitlin F. Mitchell, Dustin W. Currie, Clint N. Morgan, Hannah E. Segaloff, Shirley Lee Lecher, Tarah Somers, Miriam E. Van Dyke, John Paul Bigouette, Augustina Delaney, Juliana DaSilva, Michelle O’Hegarty, Lauren Boyle-Estheimer, Fatima Abdirizak, Sandor E. Karpathy, Jennifer K. Meece, Lynn Ivanic, Kimberly Goffard, Doug Gieryn, Alana Sterkel, Allen Bateman, Juliana Kahrs, Kimberly Langolf, Tara Zochert, Nancy Knight, Christopher H. Hsu, Hannah L. Kirking, Jacqueline E. Tate
Abstract
Repeating the BinaxNOW antigen test for severe acute respiratory syndrome coronavirus 2 using 2 groups of readers within 30 minutes resulted in high concordance (98.9%) in 2110 encounters. Same-day repeat antigen testing did not significantly improve test sensitivity (77.2% to 81.4%) while specificity remained high (99.6%).