UNISTRAIN® PRRS publications, IPVS 2014
  • Isabel del Moral Rexach
  • Isabel del Moral Rexach
  •  

UNISTRAIN® PRRS publications, IPVS 2014

  • Improvement of reproduction parameters in a german sow herds after vaccination with UNISTRAIN® PRRS

    Niemann, O. et al.; IPVS 2014.

    After the change of vaccine the reproduction data of the farm improved. No side effects occurred and the production was successfully stabilized. Nevertheless the transmission of PRRSV from sows to piglets couldn`t be found the nursery remained PRRSV positive and showed clinical signs of PRDC. A full clinical stabilisation would require a piglet vaccination.

  • Impact of sow vaccination with UNISTRAIN® PRRS on the prevalence of PRRSV antibodies at nursery age in a pig farm in germany.

    Niemann, O. et al.; IPVS 2014.

    The results may be indicative of a decrease in the infection pressure exerted by PRRSV in the nursery as a consequence of the active vaccination of the sows. Nevertheless, it was not possible to eradicate the infection from the herd, but the productive parameters show clinical and virological stabilization of the breeding herd and the nursery.

  • Heterologous cell-mediated immune responses against PRRS virus in gilts vaccinated with UNISTRAIN® PRRS

    Miranda, J. et al.; IPVS 2014.

    Genetic/antigenic diversity and variability in the immunobiological properties of the PRRSV (3,4) may compromise the heterologous protection generated by vaccination in PRRS control strategies. Although PRRS immunity is not yet fully understood, the significance not only of the NA but the cell-mediated immunity is important for a better understanding of vaccine performance (3). The present study showed that primo-immunization of naïve gilts with UNISTRAIN® PRRS induced a significant specific cell-mediated immunity against 5 heterologous PRRSV strains.

Results: 3
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