FIG. 8.

PvTRAg40- and PHA-induced Th2-type cytokine responses in P. vivax-exposed human subjects and malaria-naïve donors. For analysis of the Th2-type subset, IL-4 (a) and IL-10 (b) cytokines were assayed as described in the legend to Fig. 7. Open circles represent cytokine values for control individuals who had no history of malaria exposure (n = 10), and solid circles represent values for subjects recently exposed to P. vivax who had recovered 8 to 14 weeks prior to study (n = 20). The geometric mean is shown by a horizontal line for each group.