The enterotube system in the identification of Enterobacteriaceae and Yersinia

Finlayson M.H. ; Gibbs B. (1974)


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A trial of the Enterotube system for the identification of Enterobacteriaceae and a comparison with the methods at present in use in the Tygerberg Hospital Laboratory, were carried out. One hundred cultures belonging to the family Enterobacteriaceae including E. coli, P. mirabilis, P. vulgaris, P. morgani, P. rettgeri, Providencia, Edwardsiella, Shigella, Klebsiella, Enterobacter, Serratis, Salmonella, Citrobacter and Arizona were tested with conventional procedures and also with the Enterotube. The organisms within 24 hours after isolation, were used. Three of the cultures examined were not identified by the Enterotube technique when their identity was established by routine conventional methods. These were non urease producing non motile organisms which may have been members of the tribe Klebsiellae. Good agreement was therefore observed in 97% of the cultures when the Enterotube was used compared with the conventional technique. Three cultures of Y. enterocolitica and two of Y. pseudotuberculosis were identified by the Enterotube.

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