Influenza A: Is prime-boost a vaccination strategy for your herd?

Autogenous vaccines are approved for use by the direction of a veterinarian. [...]good basic diagnostic work up, knowledge of the influenza A virus in the area/region and isolation of the influenza A virus are critical. The next step is to determine timing. Since influenza A virus can circulate all year round, but is more prevalent in the late fall and winter months, vaccination should be timed to increase antibody production before an anticipated outbreak. Traditionally approaches have been to vaccinate replacement gilts prior to breeding, quarterly mass vaccinations to the sow herd, prefarrowing vaccinations to sows, and intranasal vaccination of the suckling piglets with the modified live vaccines, and on a limited basis, vaccination of wean-to-market pigs post weaning.