THE INFLUENCE OF CORTISONE ON PRIMATE MALARIA

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Abstract
Studies have been made of the effects of cortisone on the course of primary and developed infections with P. cynomolgi in the rhesus monkey. This investigation has shown that repetitive admmistration of the hormone in daily doses of 10 mg. per kg. during the primary attack produced striking intensification of the peripheral blood infection during the postcrisis phases of the disease. Similar administration of 10 or 50 mg. per kg. doses of the hormone during the chronic or latent stages of the infection provoked recrudescences of remarkable severity. In both early and late infections the responses induced by cortisone treatment corresponded closely to the reactions to splenectomy.