[The immune status of patients with tick-borne encephalitis studied by using an immune reagent kit for the determination of human lymphocyte subpopulations].

The comparative study of disturbances in the immune status of patients with different clinical forms of tick-borne encephalitis has revealed that in the severe (meningeal) form of the disease more pronounced imbalance in the immune system develops, especially with respect to immunoregulatory subpopulations of T-lymphocytes. This seems to be the cause of delayed activation of immune processes in this group of patients in comparison to those having an aborted course of the disease.