Concentration from Continuous Culture of Erythrocytes Infected with Trophozoites and Schizonts of Plasmodium Falciparum *

Abstract

Gelatin, from readily available sources, at specified concentrations in RPMI 1640 medium enhances sedimentation rates of suspensions of Plasmodium falciparum-infected erythrocytes from continuous cultures, resulting in an enrichment of the trophozoite- and schizont-infected cells to parasitemias of 75% or more with no deleterious effects to the parasites.