Bovine rhinotracheitis vaccine (modified live virus). Prevents respiratory disease caused by infectious bovine rhinotracheitis
(IBR) virus when administered by the subcutaneous route. Aids in the prevention of IBR when administered by the intramuscular
route. Prevents respiratory disease caused by IBR for at least 279 days when administered by the subcutaneous route. Not for use in
pregnant cows (abortions can result).