) IBR, BVD Types I and II, PI3 and BRSV. Give 2 ml SQ or IM. For primary vaccination, booster with BRSV in 2-4 weeks. Calves vaccinated before weaning should be revaccinated 30 days after weaning. Annual booster is recommended. Modified live, requires mixing. Do not use in pregnant cows or calves nursing pregnant cows.