[The biological effects of irradiation and hyperthermia]

Experimental data on the effects of radiation and hyperthermia on Chinchilla rabbits are presented. Multiple exposure to heat (40 degrees C, 20 min) between two radiation fractions was shown to influence favourably such haematological indexes as leukocyte and erythrocyte number and life-span of irradiated animals. Extra (to irradiation + heat) hyperthermia applied immediately before irradiation increased the radiation effect.