[The immune reactivity characteristics of persons engaged in the manufacture of protein-vitamin concentrates].

Immunologic studies in 130 protein-vitamin concentrate production workers of Angarsk showed the characteristic changes in clinically healthy individuals, suffering from allergic conditions. The changes are: increased levels of T lymphocytes, T killers, T helpers, B lymphocytes, decreased levels of T suppressors and IgA. Immunologic reactivity predisposing to allergic conditions and chronic course of inflammations was found to appear in the workers engaged in protein-vitamin concentrate production.