Figure 1. WBC-normalized plasma cytokine concentrations induced by stimulation of whole blood from 300 healthy subjects at 37°C for six hours with medium alone, E. coli O111:B4 LPS 10 ng/ml (as a positive control), heat-killed B. pseudomallei 1026b 2.5 × 10⁶ CFU/ml, or heat-killed B. pseudomallei K96243 2.5 × 10⁶ CFU/ml.

Boxes show the median and interquartile range; whiskers show upper and lower adjacent values; outside values are not shown for clarity.