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Bulletin No. 18 - Spring 2004
VirologyAujesky's disease
CASAL J, PLANASDEMUNT L, VARO JA, MARTIN M
The use of different vaccination schedules for sows to protect piglets against Aujeszky's disease.
J Vet Med B, 51, 2004, 8-11
Three types of protocol were compared : some sows were either vaccinated during pregnancy with an inactivated vaccine, vaccinated during pregnancy with an attenuated vaccine, or vaccinated during lactation with an attenuated vaccine. At farrowing, the level of protection was assessed in sows and piglets. Afterwards, five weaning piglets born of each group of sows were challenged intranasally with a neurotropic strain of Aujeszky's disease virus (ADV). Attenuated and inactivated vaccines conferred the same level of protection to piglets born of sows vaccinated during pregnancy. The highest level protection was indisputably achieved in piglets born of sows vaccinated during pregnancy. As a consequence, vaccinating the gilts three times before mating and successively the sows one time during the second half of pregnancy appears the best vaccination schedule to apply in order to control Aujeszky's disease.
