The median values of CRP were 62.7 mg.L-1 [38.5–107.5] and 100.7 mg.L-1 [59.0–205.2] (p = 0.001), and of PCT 0.2 μg.L-1 [0.1–0.7] and 0.4 μg.L-1 [0.1–1.9] (p<0.05) in patients with and without pneumonia, respectively. The gene discussed is CRP; the disease is susceptibility to pneumonia measurement.