Figure 7.

Average serum HI antibody in the seeder chickens of trial 1. On day fourteen of age, the chickens were treated with high and low doses of CpG ODN 2007 and poly(I:C), 18 h prior to H9N2 AIV inoculation. Twenty-four hours later, the seeder chickens were co-housed with recipient chickens. Serum was collected on days 7 (A) and 14 PI (B). Data were analyzed using a one-way ANOVA followed by Tukey’s multiple comparison test. Group means with the same letter do not differ significantly. The standard error of the mean is indicated with the error bars. The difference between means was considered significant when p < 0.05.