An efficient fluorimetric method to measure the viability of intraerythrocytic Plasmodium falciparum.

A range of various assays to measure chemosusceptibility of Plasmodium falciparum have been described in the literature. As the screening of a plethora of compounds for antiplasmodial activity is urgently needed and becomes a constantly increasing routine analysis, a test system has to fulfill the following requirements: sensitivity, reliability, simplicity of performance, high-throughput compatibility, and cost-effectiveness. Here, we describe an assay that fulfills all criteria and in which the fluorescent SYTOX Green dye is introduced to determine growth inhibition of Plasmodia in in vitro cultures.