In addition, the severe pneumonia patients who received corticosteroids (17 cases) had the highest leukocyte counts and CRP levels, and the lowest lymphocyte differentials (11 800 ± 3600/mm3, 3.0 ± 3.1 mg/dL, and 8.8 ± 6.3%, respectively) [10]. This evidence concerns the gene CRP and pneumonia.