Blood samples were taken from every patient at admission and on the sixth day. Sedimentation; C-reactive protein (CRP); white blood cell count (WBC); and, with the flow cytometer method, lymphocytes, lymphocyte subgroups, absolute percentage of T-lymphocytes, absolute percentage of B-lymphocytes, absolute percentage of helper T-lymphocytes (T
), absolute percentage of cytotoxic Tlymphocytes (T
s
h
), and ratio of T
h
to T
were measured. The levels of products of immune system cells—immunoglobulin (Ig) A, IgG, and IgM—and the mediators of immune system—C
3
and C
4
s
—were measured from the blood samples taken at admission and on the sixth day. Based o the WBC taken at simultaneous blood samples and the absolute percentage of lymphocytes, we calculated the total lymphocyte count (WBC × absolute percentage of total lymphocytes = total lymphocyte count per cubic millimeter). Based on the total lymphocyte count, lymphocyte subgroup count (T h count, T
count, B-lymphocyte, natural killer [NK] cell count) was calculated (eg, total lymphocyte count per cubic millimeter × absolute percentage of B-lymphocytes = B-lymphocytes count per cubic millimeter).