Breakdowns in S.19-vaccinated herds.
D000034:Abortion, Veterinary / Q000453:epidemiology*; D000818:Animals; D002004:Brucella Vaccine; D002007:Brucellosis, Bovine / Q000453:epidemiology*; D002417:Cattle; D005260:Female; D009520:New Zealand; D011247:Pregnancy; D014611:Vaccination / Q000662:veterinary
D002004:Brucella Vaccine