. The biology of the Protozoa. Protozoa; Protozoa. Fig. 185. — Type of Haemogregarines. A, Hcemogregarina stepanowi; B, and C, Lankesterella ranarimi. (Original.) produce the first marked symptoms of the infection. Hegner and Taliaferro (1924) estimate about 150,000,000 parasitized blood elements at this time in the case of human malaria, all parasites, if derived from a single infection, undergoing sporulation at practically the same time and liberating their toxin simultaneously into the blood. The pyrexial attacks of chills and fever in human malaria are thus accounted for. Ultimately the a
. The biology of the Protozoa. Protozoa; Protozoa. Fig. 185. — Type of Haemogregarines. A, Hcemogregarina stepanowi; B, and C, Lankesterella ranarimi. (Original.) produce the first marked symptoms of the infection. Hegner and Taliaferro (1924) estimate about 150,000,000 parasitized blood elements at this time in the case of human malaria, all parasites, if derived from a single infection, undergoing sporulation at practically the same time and liberating their toxin simultaneously into the blood. The pyrexial attacks of chills and fever in human malaria are thus accounted for. Ultimately the agametes develop into gamonts which are usually easy to distinguish from the agamonts and which are frequently differentiated into macrogametocytes and microgainetocytes. The gametocytes are taken with the blood into the digestive tract of an inverte])rate host (mosquitoes) where the microgametes are formed and where union of gametes occurs. The zygote, like that of some hsemogregarines, is motile and makes. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Calkins, Gary N. (Gary Nathan), b. 1869. Philadelphia, New York, Lea & Febiger
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