Meanwhile, the WBC count (p < 0.001), neutrophil percentage (p < 0.001), platelet count (p < 0.001), CRP level (p < 0.001), procalcitonin level (p < 0.001), and AST level (p = 0.015) were significantly lower in patients with COVID-19 compared to patients with KD. Here, CRP is linked to COVID-19.