Publication by Christophe Cazaban, Global Veterinary Services, Ceva Santé Animale (Ceva)
Infectious bursal disease virus (IBDV) is a pathogen that is able to persist in poultry houses and to withstand usual disinfectants. Therefore, it represents a
permanent threat to flock performance, because of its immuno-suppressive properties. Field trials were carried out in three locations to determine the efficiency of vaccination on farms.
Due to its unique features, Transmune is able to quickly and fully colonise the main target organ, namely the bursa of Fabricius, in susceptible chickens. In this way, the infection by the field IBDV is impaired flock after flock and the overall performances are improved. This can be monitored in several simple ways, like serology analysis (eg, ELISA) on a fixed schedule (eg, before slaughter), or molecular analysis. By sampling the bursa of Fabricius in chickens and by submitting them to a PCR analysis and sequencing it helps in identifying which IBD virus is present in the flock. It also enables comparisons of different vaccination protocols.