Figure 1.

Effect of OHCT on developmental stages of P. falciparum gametocytes. Stage III gametocytes are resistant to chloroquine (A) whereas they are sensitive to OHCT (B). Gametocytes and dead parasites are shown by arrow. Representative Giemsa stain of P. falciparum (Dd2Nm) culture treated with chloroquine (A) and OHCT (B) at 0.5 μM for 48 h (1000×).