[Functional state of the sympatho-adrenal system at late stages of the tumor process after cyclophosphamide and 5-fluorouracil administration].

: Intensification of cocarcinogenic effect of chronic influenza infection (10 months after virus instillation) in BALB/c mice was obtained by polymetallic aerosol inhalation 5 or 6 months after infection. An increase of malignant neoplasms incidence was accompanied by a decrease of the cytoproliferative activity in the thymus and spleen. The immunopathogenic and cocarcinogenic effects were maximal when the aerosol treatment was carried out 6 months after infection.