title: Concern over proposals to change rules on European trade.
mesh_terms: D000818:Animals; D000829:Animals, Domestic; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control; D003132:Commerce / Q000331:legislation & jurisprudence*; D005062:European Union; D006801:Humans; D013552:Swine; D006113:United Kingdom