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Systemic profile of innate immunity cytokines. According to the disease severity, all Coronavirus disease 2019 (COVID-19) patients were divided into two groups (I and II). The serum concentration of tumor necrosis factor α (TNFα), interleukin (IL)-1β, IL-6, IL-12, IL-23, and IL-33 were determined by ELISA. For statistical significance determination, Mann–Whitney Rank Sum test was used. *P < 0.05.
