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. 2020 Oct 26;73(4):e860–e869. doi: 10.1093/cid/ciaa1616

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© The Author(s) 2020. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 1. — Coronavirus disease 2019 molecular testing at the Johns Hopkins Hospital. A, Total number of patients tested from 11 March through 11 May 2020, patients with positive results, and patients tested more than once. B, Total number of patients with repeated testing, assay results. (Percentages in [A] and [B] represent proportion of total.) C, Flow chart showing how patients were selected for additional analyses. Abbreviations: Ct, cycle threshold; ddPCR, droplet digital polymerase chain reaction; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.