title: A disc growth-inhibition test for differentiating Treponema hyodysenteriae from other intestinal spirochaetes.
abstract: A disc growth-INHIBITION (GI) test was developed for differentiating Treponema hyodysenteriae from other intestinal spirochaetes. Tests with antisera against six spirochaetes, including two strains of T hyodysenteriae revealed four serological types among the six strains. The two strains of T hyodysenteriae represented one type. The test was specific in that there were no cross-reactions between the four types. Using antisera to two strains of T hyodysenteriae, it was possible to distinguish 11 strains isolated from cases of swine dysentery from nine other intestinal spirochaetes, seven from pigs, one from a cat and one from a chicken. The GI test seems to have potential as a simple, specific screening test for T hyodysenteriae.
mesh_terms: D000818:Animals; D002415:Cats / Q000382:microbiology; D002645:Chickens / Q000382:microbiology; D003470:Culture Media; D004403:Dysentery / Q000382:microbiology / Q000662:veterinary; D007106:Immune Sera / Q000032:analysis*; D008722:Methods; D013144:Spirochaetales / Q000254:growth & development* / Q000276:immunology; D013552:Swine / Q000382:microbiology; D013553:Swine Diseases / Q000382:microbiology; D014208:Treponema / Q000254:growth & development* / Q000276:immunology / Q000302:isolation & purification
chemical_list: D003470:Culture Media; D007106:Immune Sera