General Directions: For best results, vaccination of all swine in a herd is recommended. Shake well. Aseptically administer two 2-mL doses intramuscularly, at least 2 weeks apart.
Primary Vaccination: Administer a single 2-mL dose to pigs at approximately 1 week of age with a booster dose 2 weeks later. Pregnant swine may be safely vaccinated at 6 weeks and 2 weeks prior to farrowing.
Revaccination: Dams should be revaccinated 2 weeks before farrowing. Boars should be revaccinated semiannually.