Table 1.

Repartition of drug susceptibility of Plasmodium falciparum isolates at 10% O₂ and 21% O₂.

		21% O2
		CQa IC50b < 100 nM	CQ IC50 > 100 nM
10% O2	CQ IC50 < 100 nM	52	5
	CQ IC50 > 100 nM	17	46

^a CQ: chloroquine.

^b IC₅₀: inhibitory concentration 50% (nM).