CRP and COVID-19: As a way out of this situation, the “milder” CSS prediction criteria for COVID-19 were established, which included four groups of laboratory results: the existence of an acute phase response (ferritin > 250 ng/mL and CRP > 4.6 mg/dL), as well as the presence of at least one feature from three clusters: (1) albumin <2.8 g/dL, lymphocytes (%) < 10.2, neutrophil abs > 11.4 K/mm3); (2) ALT > 60 U/L, AST > 87 U/L, D-dimers > 4.930 ng/mL, LDH > 416 U/L, troponin I > 1.09 ng/mL; (3) anion gap < 6.8 mmol/L, chloride > 106 mmol/L, potassium > 4.9 mmol/L, BUN: creatinine ratio > 29 ratio [169].