Leptospira hardjo bacterin (killed). Prevention of infection caused by Leptospira borgpetersenii serovar Hardjo type
hardjo-bovis, including genital and renal tract colonization and urinary shedding for up to 12 months. Provides 12-month duration
of immunity. Safe for use in pregnant cows, enabling whole-herd vaccination. Annual revaccination with a single dose is
recommended.