For inflammatory markers, the most common abnormities in the three groups were found in the erythrocyte sedimentation rate, hypersensitive C-reactive protein (hsCRP) and serum amyloid A. Serum amyloid A was increased in 13 (16.46%) COVID-19 patients, 64 (85.33%) influenza A patients and 46 (80.70%) influenza B patients (p < 0.0001), and hsCRP was abnormally elevated in 40 (18.60%) COVID-19 patients, 93 (56.71%) influenza A patients and 69 (40.46%) influenza B patients (p < 0.0001) (Table 2). Here, CRP is linked to COVID-19.