PMID: 3771412Aug 1, 1986Paper

The incidence of Yersinia enterocolitica and Yersinia enterocolitica-like organisms in raw and pasteurized milk in Northern Ireland

The Journal of Applied Bacteriology
S J Walker, A Gilmour

Abstract

Yersinia enterocolitica and Y. enterocolitica-like bacteria were frequently isolated from samples of both raw bulked milk (34/150) and farm bottled (raw) milk (5/20). These bacteria were also found to contaminate creamery pasteurized milk (6/100 samples) and farm pasteurized milk (4/50 samples). Although Y. enterocolitica was the most commonly isolated species, Y. intermedia and Y. frederiksenii were also frequently obtained (52, 31 and 15% of isolates, respectively). Also, one atypical strain was identified as Y. aldovae. The Y. enterocolitica strains were largely biotype 1 (20/27) including five strains which could ferment lactose. One third of the Y. enterocolitica strains were not typable, but of those which were, the serotypes were 0:34 (18.5%), 0:5.27 (18.5%), 0:6.3 (15%), 0:4 (11%) and 0:7 (4%). Pre-enrichment in trypticase-soy broth (TSB) (at 22 degrees C for 24 h) followed by selective enrichment in bile-oxalate-sorbose broth (at 22 degrees C for 6 d) allowed the recovery of 92.3% of all isolates, as compared with 15.4% using cold enrichment in TSB at 4 degrees C for 21 d.

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Citations

Nov 1, 1989·International Journal of Food Microbiology·S TooraG Singh
May 1, 1992·International Journal of Food Microbiology·A HamamaF el Othmani
Jul 22, 1997·International Journal of Food Microbiology·M D DurisinM W Griffiths
Jun 1, 1990·Epidemiology and Infection·M H GreenwoodJ C Rodhouse
Oct 1, 1992·The Journal of Applied Bacteriology·M C ReaS Tobin
May 1, 1989·The British Journal of Surgery·S E AttwoodF B Keane
Jan 1, 1988·Society for Applied Bacteriology Symposium Series·A D Russell, G W Gould
Apr 3, 2003·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·H S ParisN Katzir

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