Cytokine production.

<p><b>(A)</b> IL-12, <b>(B)</b> IFN-γ, <b>(C)</b> IL-10, and <b>(D)</b> IL-4, in PBMCs from individuals of cured VL patients (n = 8) and endemic controls (n = 8) in response to recombinant proteins individually as well as their combinations with rLdHSP70 and SLD antigens, each data point represents one individual. The results were expressed as picograms (pg) of cytokine/ml, based on the standard curves of the respective cytokine provided in the kit. The lower detection limits for various cytokines were as follows: for 5.1 pg/ml for IFN- γ, 30.8 pg/ml for IL-12, 5.1 pg/ml for IL-4 and 6.9 pg/ml for IL-10. Values are given as concentration in pg/ml.