CRP and viral infectious disease: Elevated C-reactive protein concentrations have also been reported in severe viral infections, including H1N1 influenza pneumonia and now SARS-CoV-2 infection5,18.In a previous study of 95 COVID-19 patients, CRP For every 10 mg/L increase, the patient's risk of death increased by 11%, and C-reactive protein concentration was associated with mortality9.