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. 2022 Sep 17;933:175267. doi: 10.1016/j.ejphar.2022.175267

Fig. 1.

Fig. 1

NK cells frequency and function in COVID-19 patients and control group. A1) The results pertaining to the flow cytometry analysis of the control group, and COVID-19 patients. A2) Flowcytometry analysis of NK cells frequency showed that NK cells population was significantly lower in patients in comparison with control group (p < 0.001). B) NK cells cytotoxicity was also reduced in COVID-19 patients when compared to control group (p < 0.001). COVID-19 patient group, n = 60. Control group, n = 60. Results were presented as mean ± SD. P < 0.05 was described as statistically significant. COVID-19, coronavirus disease 2019; NK cells, Natural killer cells.