Additionally, levels of the laboratory parameters related to COVID-19 disease severity were significantly higher (ferritin, CRP) or lower (lymphocytes) in patients with positive LA: 504 (240; 815) ng/mL versus 143 (89; 436) ng/mL; p = 0.012, 44.2 (10.8; 85.8) mg/dL versus 13.1 (5.7; 19.9) mg/dL; p = 0.027, and 960 (710; 1380)/μL versus 1870 (940; 2410)/μL; p = 0.040, respectively (Supplementary Materials Table S7). Here, CRP is linked to COVID-19.