Fig. 7From: Expression of chicken interleukin-2 by a highly virulent strain of Newcastle disease virus leads to decreased systemic viral load but does not significantly affect mortality in chickensTitration of rZJ1-GFP and rZJ1-IL2 in whole blood (panel a) and spleens (panel b) of infected birds. *indicates significant difference between rZJ1-IL2- versus rZJ1-GFP-infected groups (p < 0.05). Bars represent standard deviation, n = 5Back to article page