General directions: Vaccination of healthy cattle is recommended. Mix well. Aseptically administer 2 mL subcutaneously. In accordance with Beef Quality Assurance guidelines, this product should be administered subcutaneously (under the skin) in the neck. Primary vaccination: Healthy cattle should recieve two doses adminstered 4 to 6 weeks apart. When used as an aid in preventing fetal infection, administer the second dose at least 2 weeks prior to breeding. Revaccination: Annual revaccination with a single dose is recommended. Good animal husbandry and herd health management practices should be employed.