Serological grouping ofTreponema hyodysenteriae

Serological grouping of Treponema hyodysenteriae.

Two Australian isolates of Treponema hyodysenteriae which did not fit within the current serological grouping system for these bacteria were examined by agarose gel double immunodiffusion tests (AGDP). Isolate Vic1 was serologically unique, and we propose that it becomes the type organism for a new sixth serological group of T. hyodysenteriae (Group F). Isolate Q1 was unusual in that lipopolysa...

Improved Selective Medium for the Isolation ofTreponema hyodysenteriae

Slide-agglutination for rapid serological typing of Treponema hyodysenteriae.

A slide agglutination (SA) test was developed to determine the serogroup of isolates of Treponema hyodysenteriae of serogroups A to F. Rabbit antisera which are normally used for serogrouping T. hyodysenteriae in an agarose gel double-diffusion precipitation test (AGDP) were not suitable for SA because they agglutinated isolates from more than one serogroup. The agglutination reaction was made ...

Serological grouping of streptococci by slide agglutination.

Streptococcal grouping sera for groups A, B, C, and G prepared for conventional testing by precipitation were made specific by absorption and used to identify streptococci by slide agglutination with and without staphyloccocal coagglutination. Trypsinised suspensions of 1055 strains, identified by precipitation as belonging to group A, B, C, or G, were tested by slide agglutination. Of these, 9...

Serological Grouping of Urinary Escherichia Coli.

Using only 12 antisera it has been possible to group 56.6% of all strains. Forty-four per cent of all strains were typable in the first eight of the serological groups used. Of the primary isolates from symptomatic infections, 65.7% were typable; 48.6% of all strains of the serological groups 01, 02, 04, and 06 occurred in these primary symptomatic isolates. There was a good correlation in the ...