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. 2020 Oct 15;18(3):604–612. doi: 10.1038/s41423-020-00557-9

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© CSI and USTC 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — NK cell characterization in SARS-CoV-2 infection. a Frequency and absolute count of CD3-CD56 + NK cells. b Frequency of CD56^bright NK cells, (c) Mature CD57⁺ NK cells, (d) FcεRIγ negative CD56⁺/CD57⁺ NK cells in PBMC from healthy donors and SARS-CoV-2 patients. Representative dot plots are shown on the left of each graph. Full red symbols indicate deceased patients. Middle bars represent medians. The Mann–Whitney U test was used to compare the two groups. *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001