There were no statistically significant differences in
mRNA expression of TNF-a, IFN-g and IL-6 at any time.
During the post-vaccination period (+4 and +8 weeks),
statistically significant changes of the investigated cytokines
among groups were detected for IL-10 only. In fact, in
Group A, an increase of the IL-10 gene expression was
P. Martelli et al. / Veterinary Microbiology 168 (360 2014) 357–364