CRP and bacterial infectious disease: Bacterial infections showed significantly elevated median levels versus viral infections, such as White Blood Cell (WBC) count is 8.96 vs. 6.22 × 109/L, Neutrophil (Neu) count is 6.69 vs. 4.55 × 109/L, Monocyte (Mon) count is 0.66 vs. 0.49 × 109/L, C-Reactive Protein (CRP) is 68.89 vs. 20.26 mg/L, Serum Amyloid A (SAA) is 280.75 vs. 81.16 mg/L.