Balantidiosis in pigs.
D000367:Age Factors; D000818:Animals; D001447:Balantidiasis / Q000473:pathology / Q000662:veterinary*; D005767:Gastrointestinal Diseases / Q000473:pathology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology* / Q000473:pathology