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Bulletin No. 19 - Fall 2004
18th IPVS Congress, Hamburg, Germany, 2004Porcine Reproductive and Respiratory Syndrome (PRRS)
GASS-COFRE A, GROßE-BEILAGE E, SCHREIBER A, NOE T
The safety and efficacy of simultaneous PRRS (Progressis®) and PPV/Erysipelas (Parvoruvac®) vaccination in endemically PPRSV infected breeding herds
Proceedings of the 18th IPVS Congress, Hamburg, Germany, 2004 - Volume 1:120
Vaccination programs allowing simultaneous administration of two vaccines would be a way of reducing the number of interventions and possibly of enhancing the efficacy of the vaccinations. The feasibility and potential benefits of such a procedure was evaluated for Progressis® (Merial) and Parvoruvac® (Merial) in 4 PRRSV-infecteds herd that had vaccinated for Erysipelas and Parvovirus for years but never vaccinated against PRRSV before. Safety was assessed using rectal temperature, local reactions, clinical signs and reproductive performance as parameters, efficacy was assessed with regards to reproductive performance (litter size, live born piglets and number of weaned pigs). Simultaneous administration of Progressis® and Parvoruvac® was demonstrated a safe schedule for sow herd vaccination. Regarding efficacy, a difference was observed according to the PRRS-status (stable versus unstable) of the herds with major increase in litter performance in herds with major extent of PRRS associated problems. The mean increase in weaned pigs per litter reached 0.4 in all herds.
