Figure 6
![Figure 6](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13567-017-0423-8/MediaObjects/13567_2017_423_Fig6_HTML.gif)
Single cytokine profiles of selected genes in progressor and regressor groups of immunized and non-immunized chickens. The expression value after challenge was normalized to the basic value expression in the day of challenge. For more cytokines, see Additional file 5.