Among the 175 patients diagnosed with pneumonia, 19 (11%) had fever at first measurement, median CRP was 87 mg/L (IQR 32–157), neutrophil leucocyte count was 7.4 × 109/L (IQR 4.8–10.2), and median oxygen saturation was 94% (IQR 92–96%). This evidence concerns the gene CRP and susceptibility to pneumonia measurement.