Figure 2
Antigen-specific T lymphocyte proliferation to Salmonella. Antigen-specific proliferation of splenic lymphocytes from Line 72 chickens infected with S. Gallinarum 9R or infected controls (±SEM). Proliferation was determined by the uptake of tritiated thymidine measured 48 h after culture of cells with soluble S. Gallinarum antigen. Differences between control and infected groups were analysed by ANOVA indicating significantly increased proliferation in infected over control birds at 3 and 4 weeks post infection (P < 0.05)