This product has been shown to be effective for the vaccination of healthy cattle, 3 months of age or older against respiratory disease and fetal infection, including persistently infected calves due to bovine virus diarrhea virus (BVD) Types 1 & 2. Respiratory duration of immunity is at least 1 year and reproductive duration of immunity is at least 206 days. For more information regarding efficacy and safety data, see productdata.aphis.usda.gov.