title: Northern Ireland moves to biennial brucellosis testing.
mesh_terms: D000818:Animals; D002007:Brucellosis, Bovine / Q000517:prevention & control*; D002417:Cattle; D060740:Disease Eradication; D006801:Humans; D008403:Mass Screening / Q000379:methods / Q000662:veterinary*; D009660:Northern Ireland; D013997:Time Factors