Clostridium chauvoei - C. septicum - C. novyi - C. sordellii - C. perfringens types C and D - Haemophilus somnus bacterin-toxoid (killed). Aids in the prevention of diseases caused by the clostridial agents indicated above and Histophilus somni (Haemophilus somnus). Helps prevent 7 clostridial diseases (including diseases caused by C. perfringens types B, C and D). Helps protect calves and adult cattle against H. somni, a contributor to respiratory disease and the cause of thrombotic meningoencephalitis (TEME) and reproductive tract infection.