TGFB1 and infection: No significant difference was found between the levels of TGF-β expression in early- and late-stage infections for either medium control or SomAg-stimulated PBMC cultures (P = 0.791 and 0.828, respectively), nor was any significant difference found between TGF-β levels in medium control and SomAg-stimulated cultures at either time point (P = 0.291 and 0.306, respectively).