Yersinia pseudotuberculosis: use of cold-temperature enrichment for isolation.
نویسندگان
چکیده
The successful isolation of Yersinia pseudotuberculosis from the stool of an asymptomatic family member of a patient with yersinia septicemia is presented. Cold enrichment permitted the isolation after 4 weeks of refrigerator incubatio,.
منابع مشابه
Variation in the prevalence of enteropathogenic Yersinia in slaughter pigs from Belgium, Italy, and Spain.
Tonsils of 829 fattening pigs originating from Belgium (n = 201), Italy (n = 428), and Spain (n = 200) were collected between 2005 and 2007 to study the prevalence of enteropathogenic Yersinia in slaughter pigs. Isolation of Yersinia enterocolitica and Yersinia pseudotuberculosis was done by selective enrichment and by cold enrichment for 7 and 14 days. Pathogenic Y. enterocolitica and Y. pseud...
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A cold-temperature enrichment procedure was used to isolate Yersinia enterocolitica serotype 6 from a clinical stool specimen. The use of conventional laboratory media and enrichment procedures failed to isolate this organism.
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Studies were done to determine the usefulness of dilute alkali (KOH) treatment of meat samples for direct isolation of Yersinia enterocolitica and Yersinia pseudotuberculosis, without enrichment. Virulent Y. enterocolitica and Y. pseudotuberculosis in pork contaminated with 10(2), 10(3), and 10(4) cells per g survived the direct KOH treatment and were never recovered by using KOH postenrichment...
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Data pertaining to 20 strains of Yensinia enterocolitica isolated from the cecal content of swine slaughtered at Toronto Abattoirs are presented. Fifteen of 20 cultures belonged to the two predominant human serotypes in Ontario (i.e., serotype O:3 and O:5,27.) Seven cultures of Y. enterocolitica O:3 belonged to the "Canadian" human phage type 9b. These findings are further proof that swine are ...
متن کاملRequirement for RNA helicase CsdA for growth of Yersinia pseudotuberculosis IP32953 at low temperatures.
The expression of csdA, encoding an RNA helicase, was induced at 3°C in Yersinia pseudotuberculosis. The role of CsdA in Y. pseudotuberculosis under cold conditions was confirmed by impaired growth of insertional csdA mutants at 3°C. The results suggest that CsdA is crucial for Y. pseudotuberculosis survival in the chilled food chain.
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عنوان ژورنال:
- Journal of clinical microbiology
دوره 11 1 شماره
صفحات -
تاریخ انتشار 1980