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. 2021 Apr 27;12(2):e00085-21. doi: 10.1128/mBio.00085-21

FIG 2.

FIG 2

Characterization of immune cell death in individuals recovering from COVID-19. (A) The percentages of early apoptosis (annexin V+ 7-AAD−) and late apoptosis/necroptosis (annexin V+ 7-AAD+) of NKT-like cells in the blood of CI (n = 30) compared to those of UI (n = 21) were analyzed by flow cytometry. (B) Correlation analysis between the frequencies and the late apoptosis/necroptosis of NKT-like cells was performed in CI. (C) The percentages of early apoptosis (annexin V+ 7-AAD−) and late apoptosis/necroptosis (annexin V+ 7-AAD+) of CD4 T, CD8 T, B, and NK cells in the blood of CI (n = 30) compared to those of UI (n = 21) were analyzed by flow cytometry. CI, COVID-19-convalescent individuals; UI, SARS-CoV-2-unexposed individuals. Statistically significant differences are indicated by asterisks (*, <0.05; **, <0.01; ns, not significant; nonparametric Mann-Whitney test).