- History of treatment with any antimalarial drug (such as halofantrine, chloroquine, quinine, mefloquine, Malarone, SP, artemisinin compounds) or antibacterial with known antimalarial activity (macrolides, doxycycline, clindamycin) within 2 weeks prior to enrollment of a subject (and/or of the mother of a subject who is being breastfed) into the study;