Comparison of KIR and perforin expression by different NK cell subsets for Nandi, Kisumu, and eBL children. Comparison of KIR2DL1S1 (A), KIR2DL1S5 (B), KIR2DL2 (C), KIR2DL3 (D), and KIR3DL1 (E) among the different NK cell subsets: CD56^brightCD16^neg (1), CD56^brightCD16^pos (2), CD56^dimCD16^pos (3), and CD56^negCD16^pos (4). (F) Expression of KIR3DL1 on CD56^negCD16^pos NK cells among Nandi, Kisumu, and eBL children. For all KIRs, Nandi, n = 7; Kisumu, n = 5; and BL, n = 10. (G) Perforin expression by NK cell subsets: CD56^brightCD16^neg (1), CD56^brightCD16^pos (2), CD56^dimCD16^pos (3), and CD56^negCD16^pos (4) (Nandi, n = 4; Kisumu, n = 5; eBL, n = 9). (H) Color code used for data. Data are mean ± SD. *P < .05, **P < .01, ***P < .001, ****P < .0001. n.s., not significant.