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. 2020 Oct 29;10:18689. doi: 10.1038/s41598-020-75659-5

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© The Author(s) 2020

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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Graphics are showing lung tissue expression of IL-4, IL-13, TGF-β (percentage per HPF) and M2 macrophages Allred score (Sphingosine-1) of COVID-19 and H1N1 groups in a timeline (time from hospitalization to death). C COVID19 group following by patient number, H H1N1 group following by patient number; the second number refers to the time from hospitalization to death), Sphingo Sphingosine-1.