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Proinflammatory cytokine expression is decreased in monocytes from convalescent COVID-19 patients. (A) TNF-α and (B) IL-6 expression in convalescent COVID-19 (red, n=10) and control (blue, n=10) groups in the absence (empty) or presence (filled) of 100 ng/mL LPS. Comparison between groups (control vs. COVID-19) Mann-Whitney U test. Comparison within groups (untreated vs. LPS-treated) Wilcoxon ranked test. ns, not significant.
