Figure 3From: CD4+ T cells apoptosis in Plasmodium vivax infection is mediated by activation of both intrinsic and extrinsic pathways Plasma level of TNF. Levels of circulating TNF were determined by ELISA in malaria-naive donors (n = 11) and P. vivax-infected donors (n = 20). Mann–Whitney test was used for comparison and the result was expressed as the median with interquartile range.Back to article page