Comparative efficacy of an injectable vaccine and an intranasal vaccine in stimulating Bordetella bronchiseptica-reactive antibody responses in seropositive dogs.

Objective: To compare antibody responses to intranasal and SC Bordetella bronchiseptica vaccines in seropositive dogs.

Design: Randomized controlled study.

Animals: 40 young adult Beagles vaccinated against B bronchiseptica.