Haemophilus somnus bacterin. Aids in the prevention of disease caused by Histophilus somni (Haemophilus somnus). 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. Contains 3 inactivated H. somni isolates – from respiratory, reproductive and nervous
tissue. Annual revaccination with a single dose is recommended.