Literary and experimental data on the character of changes in immune o
rgans and lymphoid tissue of respiratory system and digestive system i
n laboratory animals during the mission factors model are given. Inhib
ition of reproductive function in bone marrow, thymus and spleen under
irradiation of gamma-rays and accelerated carbon ions, tensity of imm
une response in the lymphoid structures of larynx, trachea and bronchi
under the influence of acetaldehyde vapors and decrease of lymphoid t
issue square on histological series in spleen and small intestine with
an increase of concentration of microbial bodies in the drinking wate
r were estimated. (C) 1998 Elsevier Science Ltd. All rights reserved.