Using receiver operating characteristic analysis, area under curve (AUC) to diagnose bacterial infection was 0.948 (95% confidence interval [CI]: 0–1.000) for CRP (P = 0.001) compared with 0.807 (95% CI: 0.668–0.947) for PCT (P = 0.019) (Figure 1). The gene discussed is CRP; the disease is bacterial infectious disease.