Fig. 1.

In vitro susceptibilities of parasite isolates from the China-Myanmar border to 10 antimalarial drugs. Graph A shows the dot plot of IC₅₀s of the 107 parasite isolates to chloroquine (CQ), quinine (QN) and pyrimethamine (PY), while graph B shows their IC₅₀s to piperaquine (PQ), naphthoquine (NQ), lumefantrine (LMF), pyronaridine (PND), artesunate (AS), dihydroartemisinin (DHA) and mefloquine (MQ). Red bars indicate the cutoffs for resistance as defined in Table 1. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)