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. 2021 Jul 16;11:14604. doi: 10.1038/s41598-021-94055-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Concordance of LFA and RT-PCR results. Qualitative results from the 3 LFA assays: BD, Sofia and BinaxNOW were compared to the RT-PCR results based on the Ct values. Ct values were divided in 4 groups and displayed on the x-axis. The total number of samples tested as positive by each LFA assay is displayed at the top of the graph, with the total number of samples tested underneath. Percent (%) positive agreement of each LFA assay to the RT-PCR assay is represented on the y-axis.