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Bulletin No. 19 - Fall 2004
18th IPVS Congress, Hamburg, Germany, 2004Swine Influenza
BARIGAZZI G, FONI E, OSTANELLO F, MANTOVANI G, SPERATI RUFFONI L, LEOTTI G
Serological evaluation of a vaccination protocol for swine influenza virus in fattening pigs
Proceedings of the 18th IPVS Congress, Hamburg, Germany, 2004 - Volume 1:455
In Italian pigs, the growing period is extended up to 9 months of age which leads to a weakening of the immune protection against swine influenza virus provided by the usual two-shot vaccination schedule. The efficacy of a third shot administered at six months of age was thus evaluated. At their introduction into the herd, 32 pigs of 10 weeks of age were distributed into 2 groups, each group being subsequently subjected to a different vaccination protocol. Pigs of one group were vaccinated three times with AKIPOR®FLU (Merial) at 80, 110 and 190 days of age while the remaining pigs were vaccinated twice with AKIPOR®FLU (Merial) at 80 and 110 days of age and once with AKIPOR® (Merial) at 190 days of age. The results show that a third vaccination at 6 months of age with AKIPOR®FLU (Merial) induces higher specific antibody levels, better immune protection and thus can help to reduce economic loss due to potential infections with swine influenza virus occurring at the end of fattening.
