Neither the mean concentrations nor the time point analysis revealed differences in the BK concentrations between the controls and the COVID-19 patients (mean: control: 340 [301–487] pg/mL, COVID-19: 390 [211–586] pg/mL, p = 0.807; t0 348 [219–649] pg/mL, t24 324 [201–772] pg/mL, t72 272 [186–437] pg/mL, all p > 0.05, data not shown). This evidence concerns the gene KNG1 and COVID-19.