Ultrastructure of

P falciparum in CC cells. Parasite clone GB4 was cultured for 4 days in CC cells and then observed by electron microscopy. Healthy forms (ring, A; schizont, B) and degraded forms (C-E) are shown for comparison. Parasite death is associated with disintegration of parasite membranes, organelles, and nuclei, as well as the absence of knobs. Bars represent 1 μm.