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Table 2 Ex vivo and in vitro susceptibility of Plasmodium falciparum isolates to chloroquine

From: Return of chloroquine sensitivity to Africa? Surveillance of African Plasmodium falciparum chloroquine resistance through malaria imported to China

Isolate IC50 (nM)
Ex vivo In vitro
1 113 151.7
2 15.9 9.7
3 11.3 11.9
4 4.8 11.9
5 10.5 25
6 32.3 31.3
7 60.3 43.3
8 57.6 56.8
9 20.4 133
10 23.8 6.1
  1. Note: Total ten P. falciparum isolates were tested for their sensitivity to chloroquine with paired fresh and culture-adapted samples, and the correlations and differences between IC50 values were tested, with Spearman’s correlation coefficient of 0.679 (P = 0.31), and there was no significant difference in mean IC50s between them (Z = -0.357, P = 0.720)