Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 May 12:aqab035. doi: 10.1093/ajcp/aqab035

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© American Society for Clinical Pathology, 2021. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

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.

This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)

PMC Copyright notice

Seven-day results, case positivity, and pooled tests of coronavirus disease 2019 (COVID-19) before and after implementation of sample pooling on the Roche cobas 6800 platform. The gray and blue lines represent the 7-day number of COVID-19 results reported before and after pooling, respectively, whereas the green line shows the 7-day number of COVID-19 tests used after pooling. Of note, the number of tests used and results reported were equivalent before pooling. The orange line represents the 7-day number of COVID-19–positive results, while the red line shows the 7-day COVID-19 positivity rate (or percent positive).