IL6 and COVID-19: Additionally, the concentrations of IL-1β (1,236.5 ± 398.1; p = 0.0105), IL-6 (1,408.9 ± 490.3; p = 0.0198), and IL-8 (1,443.4 ± 195.8; p = 0.0012) were significantly upregulated in the critical COVID-19 non-survival group compared to the critical COVID-19 survival group (Figure 5).