[Survival and physical development of progeny of Swiss mice after 2450 Mhz microwave irradiation during pregnancy].

The influence of prenatal repetitive 2450 MHz microwave irradiation of Swiss mice on postnatal survival and development was investigated. The animals were divided after mating into experimental and control groups and irradiated at power densities of 10 or 40 mW/cm2 at various periods of gestation. The pregnant females were allowed to deliver at term and feed their offsprings. Size of the litters and body mass of springs were checked on the 4th, 12th day of life. In progeny delivered by females irradiated at 40 mW/cm2 during the second half of pregnancy lowered increments of body mass before the 12th day of life was noted. We observed as well the lower size of litters delivered by females irradiated in the same conditions during the first half of pregnancy.