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Repeated Antigen Testing Among SARS-CoV-2–Positive Nursing Home Residents

Published online by Cambridge University Press:  20 August 2021

Erin D. Moritz*
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Susannah L. McKay
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Farrell A. Tobolowsky
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Stephen P. LaVoie
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Michelle A. Waltenburg
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Kristin D. Lecy
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Natalie J. Thornburg
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Jennifer L. Harcourt
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Azaibi Tamin
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Jennifer M. Folster
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Jeanne Negley
Affiliation:
Acute Disease Epidemiology, Georgia Department of Public Health, Atlanta, Georgia, USA
Allison C. Brown
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
L. Clifford McDonald
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Preeta K. Kutty
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
CDC Infection Prevention and Control Group
Affiliation:
COVID-19 Response Team, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
*
Corresponding Author: Erin D. Moritz, PhD, MS, 4770 Buford Hwy., MS S106-5, Room 05013, Atlanta, GA 30341, emoritz@cdc.gov, 404.498.2756

Abstract

Repeated antigen testing of 12 SARS-CoV-2–positive nursing home residents using Abbott BinaxNOW™ identified 9/9 (100%) culture-positive specimens up to 6 days after initial positive test. Antigen positivity lasted 2–24 days. Antigen positivity might last beyond the infectious period, but was reliable in residents with evidence of early infection.

Type
Concise Communication
Copyright
© 2021 by The Society for Healthcare Epidemiology of America. All rights reserved.

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