[Clinico-immunological characteristics of people who worked within the 30-kilometer zone of the accident at the Chernobyl Atomic Power Plant 4 years after the accident]. / Kliniko-immunologicheskaia kharakteristika kontingenta lits, rabotavshikh v 30-kilometrovoi zone avarii na Chernobyl'skoi AES cherez 4 goda posle radiatsionnoi avarii.

Clinical examination with immune status assessment of more than 300 healthy persons, who worked in 30-km Chernobyl NPP zone four years after the accident was carried out. The clinical characters of immune deficiency were detected in 6.67% of examined persons and appeared as repeated respiratory diseases. Significant increase in mean level of leukocytes and lymphocytes was revealed. Activation of T-helper link of cell immunity was determined by increase of CD4+ cells in 35.2% of examined persons, that were lower than in people who took part in Chernobyl accident amelioration in 1986. Decrease in content of T-cells and B-cells was observed in 1/4 and 3/4 of persons correspondingly by rosette assays. No changes in serum immunoglobulins level was observed.