Abbreviations: COVID-19, coronavirus disease; ICU, intensive care unit; BiPAP, bilevel positive airway pressure; CPAP, continuous positive airway pressure; S.E., standard error; CRP, C-reactive protein; LDH, lactate dehydrogenase; PCT, procalcitonin; TLC, total leukocyte count. The gene discussed is CRP; the disease is COVID-19.