Figure 5From: Cell-mediated and humoral immune responses in pigs following primary and challenge-exposure to Lawsonia intracellularisCD4:CD8 ratios in cell cultures. CD4:CD8 ratios (mean of Ag-culture and PBS-culture) of gated lymphocytes in PBMC cell cultures before challenge (day 48) and after challenge (day 67, 75 and 82). Median ratios (line) and significant differences (*) are shown for CC group and RE group.Back to article page