For vaccination of healthy cattle and calves as an aid in preventing disease caused by Histophilus somni (Haemophilus somnus). Somubac consists of inactivated, standardized cultures of Histophilus adjuvanted with aluminum hydroxide.
Directions: Shake well before using. Administer a single 2-mL dose two to four weeks later. In accordance with Beef Quality Assurance guidelines, this product should be administered subcutaneously (SC) under the skin. Annual revaccination with a single dose is recommended.