Constraints imposed by infectious diseases on the import and export of horses.
D000818:Animals; D003132:Commerce; D003140:Communicable Disease Control / Q000379:methods*; D003141:Communicable Diseases / Q000662:veterinary*; D006734:Horse Diseases / Q000517:prevention & control*; D006736:Horses; D012306:Risk; D014186:Transportation; D006113:United Kingdom