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. 2022 Mar 29;33(4):457–464. doi: 10.1097/EDE.0000000000001488

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This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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FIGURE 1. — Combined estimated (A) polymerase chain reaction (PCR) prevalence in the hospital system and community-based on asymptomatic patients, (B) COVID-related emergency department (ED) visits in Lake and Porter counties, and (C) estimated immunoglobulin G (IgG) to the nucleocapsid protein (IgG N) prevalence till February 15, 2021. The error bars represent 1 SD of uncertainty. The positions of the months on the x-axis correspond to the week of data containing the first of that month.