Fig. 3.

The in vitro activity of selected compounds against intramacrophage amastigotes of Leishmania major. (A) The mean number of amastigotes per macrophage after treatment with selected compounds for 24h. (B) The percentage of infected macrophages after treatment. (C) Infectivity index of macrophages cultured 24 h in presence of selected compounds. The infectivity index was determined by multiplying the percentage of macrophages that had at least one intracellular parasite by the average number of intracellular parasite per infected macrophage (100 cells were examined/well).