The cell-mediated immune response evaluated as
number of M. hyopneumoniae-specific IFN-g secreting
cells (SC) in PBMC showed a significant increase over time
in Groups A and B. In both groups, the course was
comparable. No IFN-g SC were detected at inclusion/
vaccination (time 0) in all groups. The IFN-g response was
evident in vaccinated pigs belonging to Groups A and B at 4