Performance of Repeat BinaxNOW SARS-CoV-2 Antigen Testing in a Community Setting, Wisconsin, November-December 2020

  1. Melisa M. Shah
  2. Phillip P. Salvatore
  3. Laura Ford
  4. Emiko Kamitani
  5. Melissa J. Whaley
  6. Kaitlin Mitchell
  7. Dustin W. Currie
  8. Clint N. Morgan
  9. Hannah E. Segaloff
  10. Shirley Lecher
  11. Tarah Somers
  12. Miriam E. Van Dyke
  13. John Paul Bigouette
  14. Augustina Delaney
  15. Juliana DaSilva
  16. Michelle O’Hegarty
  17. Lauren Boyle-Estheimer
  18. Fatima Abdirizak
  19. Sandor E. Karpathy
  20. Jennifer Meece
  21. Lynn Ivanic
  22. Kimberly Goffard
  23. Doug Gieryn
  24. Alana Sterkel
  25. Allen Bateman
  26. Juliana Kahrs
  27. Kimberly Langolf
  28. Tara Zochert
  29. Nancy W. Knight
  30. Christopher H. Hsu
  31. Hannah L. Kirking
  32. Jacqueline E. Tate
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Abstract

Repeating the BinaxNOW antigen test for SARS-CoV-2 by two groups of readers within 30 minutes resulted in high concordance (98.9%) in 2,110 encounters. BinaxNOW test sensitivity was 77.2% (258/334) compared to real-time reverse transcription-polymerase chain reaction. Repeating antigen testing on the same day did not significantly improve test sensitivity while specificity remained high.

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