BLOOD GROUPS AND THERAPEUTIC MALARIA

Abstract

Since malarial therapy for syphilis of the central nervous system has come into vogue, several problems of practical importance have arisen which have interested the physician employing this mode of therapy. For therapeutic as well as for economic reasons, it is highly desirable that the course of malarial treatment be as short as possible. Usually such a course, if successfully carried out, consumes from eight to ten days, with an incubation period of four days or less. Wide variations in the incubation period, however, have often prolonged the course of treatment, making it unsatisfactory from an economic point of view. In fact, frequently the patient has to be kept in the hospital for weeks because the malarial fever cannot be induced in spite of repeated injections of blood containing virulent parasites. This has been ascribed to the following causes: individual factors;¹ the manner of inoculation, i. e., subcutaneously or