[Immune system in residents of territories contaminated with radionuclides after Chernobyl accident].

Aim: Study of the immunity and nonspecific defense factors in subjects living at a territory contaminated with radionuclides at a density of 1-5 Ci/km2 after the Chernobyl accident.

Materials And Methods: A total of 144 subjects aged 18 to 82 years living in the Sasovo region of the Ryazan district were examined. Three groups were distinguished with different density of contamination: 1) n = 54, 1-5 Ci/km2; 2) n = 36, conditionally pure territory; and 3) n = 54, living at the interface of the two territories.