CXCL8 and COVID-19: Ct values were negatively correlated with IL-6 (ORF1a/b p = 0.0458, N p = 0.0426) and IL-8 (ORF1a/b p = 0.0208, N p = 0.0123) concentrations, and positively correlated with eosinophil count (ORF1a/b p = 0.0171, N p = 0.01) in patients with COVID-19 (Table 5).