Active immunisation of cattle to reduce clostridial diseases caused by:
- chauvoei, C. septicum, C. novyi type B, C. haemolyticum and C. tetani.
The onset of immunity is two weeks after the primary course. Although direct challenge studies have not been
performed the duration of immunity, based on serological data, is 1 year.
Passive immunity of calves via colostrum of their vaccinated mothers to reduce clostridial diseases caused by the
The duration of passive immunity varies from 12 weeks for C. tetani and C. novyi type B; to 8 weeks for C. septicum
and C. chauvoei and 2 weeks for C. haemolyticum.