Lack of efficacy of alkali treatment for isolation of Yersinia enterocolitica from feces

The efficacy of KOH treatment to enhance isolation of Yersinia enterocolitica from stools containing fecal flora which is not adequately suppressed by selective media was tested by direct plating and enrichment techniques. Although a distinct difference in the level of alkali tolerance was observed between Y. enterocolitica and the fecal organisms included in the study, the selective suppression of the fecal flora from stools could not be …