IFNG and Plasmodium falciparum malaria: When median plasma IFN-γ, IL-10 and TGF-β levels were compared across groups, the results showed that Plasmodium falciparum malaria infected individual expressed significantly higher (P < 0.05) levels of IFN-γ (47.7 pg/ml) as compared to health controls (8.8 pg/ml) and soil borne helminths infected individuals (22.8 pg/ml, Fig. 1a).