• Mayo Clinic proceedings · Sep 2020

    Low Utility of Repeat Real-Time PCR Testing for SARS-CoV-2 in Clinical Specimens.

    • Douglas W Challener, Aditya Shah, John C O'Horo, Elie Berbari, Matthew J Binnicker, and Aaron J Tande.
    • Division of Infectious Disease, Mayo Clinic, Rochester, MN. Electronic address: challener.douglas@mayo.edu.
    • Mayo Clin. Proc. 2020 Sep 1; 95 (9): 194219451942-1945.

    AbstractIn a multicenter cohort of 22,315 patients tested for COVID-19, 1676 (7.5%) had repeat testing via real-time polymerase chain reaction following an initial negative test. Of those retested within 7 days of their first negative test, only 2.0% had a positive result. This suggests that repeat testing from the same source is unlikely to provide additional information.Copyright © 2020 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.

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