Porcine ulcerative spirochaetosis.
D000818:Animals; D004431:Ear, External / Q000473:pathology; D004487:Edema / Q000662:veterinary; D009336:Necrosis; D012883:Skin Ulcer / Q000473:pathology / Q000662:veterinary*; D013145:Spirochaetales Infections / Q000276:immunology / Q000473:pathology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000276:immunology / Q000473:pathology*