Human infections with Plasmodium knowlesi—zoonotic malaria S.B. Millar, J. Cox-Singh  Clinical Microbiology and Infection  Volume 21, Issue 7, Pages 640-648 (July 2015) DOI: 10.1016/j.cmi.2015.03.017 Copyright © 2015 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions

Fig. 1 Red blood cells infected with asexual stage parasites in Giemsa-stained thin blood films from patients with Plasmodium knowlesi malaria: (a) early trophozoite (ring stage); (b) trophozoite with increased blue-stained cytoplasm and diffuse hemozoin pigment grains (yellowish areas at the periphery of the cytoplasm); (c) schizont containing ten merozoites, daughter parasites, with clumped pigment present (densely stained body); and (d) schizont undergoing egress to release merozoites to infect new red blood cells. The complete erythrocytic cycle from merozoite invasion of a target red blood cell to schizont rupture in P. knowlesi takes 24 h. Clinical Microbiology and Infection 2015 21, 640-648DOI: (10.1016/j.cmi.2015.03.017) Copyright © 2015 European Society of Clinical Microbiology and Infectious Diseases Terms and Conditions