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Identification of Treponema Hyodysenteriae and Treponema Innocens using Two Four-Hour Identification Systems

1991; SAGE Publishing; Volume: 3; Issue: 3 Linguagem: Inglês

10.1177/104063879100300304

1943-4936

M. Achacha, Serge Messier,

Antimicrobial Resistance in Staphylococcus

Two 4-hour identification systems, the RapID-ANAII (Innovative Diagnostic Systems) and the ANI card (Vitek Systems), were used to identify isolates of Treponema hyodysenteriae and T. innocens. Twenty-one isolates of T. innocens and 53 isolates of T. hyodysenteriae were tested with both systems. With the ANI system, alpha-galactosidase was the only test that differentiated the two species. With the RapID-ANAII system, alpha-galactosidase and indole tests allowed differentiation of the two species. Treponema hyodysenteriae was alpha-galactosidase negative and indole positive, whereas T. innocens produces the opposite reactions. Three isolates were alpha-galactosidase negative and indole negative. These isolates represent a group intermediate between the two officially described species. The two species of swine Treponema can be identified by commercial identification kits and a third group of isolates intermediate between the two species was identified.