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LATENT EFFECTS OF CHRONIC IRRADIATION ON LONGEVITY AND THE PERIPHERAL BLOOD ELEMENTS OF THE MONKEY, MACACA MULATTA,
SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX
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One of the problem areas of radiation biology is concerned with the latent or long-term effect of the biologic damage that might result from chronic low dose levels of ionizing radiation. This report presents data from a study in the primate, Macaca mulatta, over a period of several years following a chronic irradiation schedule resulting in accumulated doses of 77 to 614 rep of mixed gamma and neutron radiations. Although the circulating blood elements are considered to be sensitive to radiation damage, they recovered, following the irradiation schedule, to essentially normal condition and showed no long-term decrement due to the radiation exposure. Longevity in the limited number of animals utilized also indicated no change due to radiation. Author
APPROVED FOR PUBLIC RELEASE