[Change of T lymphocyte and its activated subsets in SARS patients].

Objective: To study abnormal changes of T lymphocyte and its activated subsets in severe acute respiratory syndrome (SARS) patients.

Methods: Flow cytometer with multi-color flouroscence and hematology analyzer were used to detect the expression of T lymphocyte and its activated a subsets in 240 SARS patients including 50 cases of critical type and 190 cases of common type.

Results: Statistical analysis by means of SAS software showed that there was significant decrease in absolute counts (AC) of T lymphocyte and its subsets in SARS patients when compared with normal people, while percentages (PC) of CD3+CD25+ and CD3+ HLA-DR+ subsets were increased markedly.