An inactivated Infectious Bovine Rhinotracheitis Marker (gE negative) vaccine.
One dose (2 ml) contains: Bovine Herpes Virus type 1 (BoHV-1), strain Difivac (gE‑negative) to induce a geometric mean seroneutralising titre of at least 1:160 in cattle. Also contains the adjuvants aluminum hydroxide 14-24 mg and Quil A 0.25 mg, and the preservative thimerosal 0.2 mg.