TABLE 1.

In vitro sensitivities of the K1 and HB3 isolates of P. falciparum to the selected antimalarial drugs and proteinase inhibitors^a

Drug	Mean IC50 (nM) ± SD for isolate:
	K1	HB3
Ro40-4388	256 ± 26	318 ± 22
E64	8,982 ± 744	9,653 ± 1,677
AQ	18.3 ± 1.5	4.1 ± 1
CQ	110 ± 10	17.7 ± 2.5
HF	2.6 ± 0.9	3.8 ± 0.3
MQ	14.8 ± 3.2	28.7 ± 3.5
QN	176 ± 25	100 ± 20
PQ	2,027 ± 635	8,086 ± 278

^aData were derived from at least three assays performed at a hematocrit of 1% and a parasitemia of 1%.