In industrialized countries bacterial intestinal infections are commonly caused by enteropathogenic Enterobacteriaceae. The interaction of the microbiota with the host immune system determines the adequacy of an appropriate response against pathogens. In this study we addressed whether the probiotic Bifidobacterium adolescentis is protective during intestinal Yersinia enterocolitica infection. ...

yersinia enterocolitica is newly included in the classification of both the invasive bacteria, e.g. shigella, and the toxicogenic bacteria, e.g. escherichia coli. five human strains and 45 environmental strains were used to produce y.enterocolitical enterotoxin at 40c, 240c and 370c using infant mouse assay. at 250c enterotoxin was produced by 10 environmental strains and by all of the 3 human ...

The homologues LcrV of Yersinia species and PcrV of Pseudomonas aeruginosa are pore-forming components. When expressed in a Yersinia lcrV background, PcrV formed smaller pores in infected erythrocyte membranes, correlating to a lowered translocation of Yersinia effectors. To understand this phenomenon, cytotoxins exoenzyme S of P. aeruginosa and YopE of Yersinia were introduced into a Yersinia ...

yersinia enterocolitica is rapidly emerging worldwide as an enteric pathogen and has become a major cause of diarrhea even in developed countries. the aim of this study was to characterize and genetic diversity analysis among y. enterocolitica strains isolated from fish and chicken sources.from 44 strains, 55% (24 strains) found to be positive for y. enterocolitica by colony morphology, biochem...

1. Marks MI, Pai CH, Lafleur L, Lackman L, Hammerberg 0: Yersinia enterocolitica gastroenteritis: A prospective study of clinical bacteriologic and epidemiologic features. J PEDlATR 96:26, 1980. 2. Kohl S, Jacobson JA, Nahmias A: Yersinia enterocoluica infections in children. J PEDlATR89:77,1976. 3. Wormser 8P, Kersch GT: Yersinia emerocolitica: Clinical observations. In Bottone EJ, editor: Yer...

Pathogenic Yersinia spp (Yersinia pestis, Yersinia pseudotuberculosis, and Yersinia enterocolitica) have evolved an exquisite method for delivering powerful effectors into cells of the host immune system where they inhibit signaling cascades and block the cells' response to infection. Understanding the molecular mechanisms of this system has provided insight into the processes of phagocytosis a...

Pathogenic Yersinia spp ( Yersinia pestis , Yersinia pseudotuberculosis , and Yersinia enterocolitica ) have evolved an exquisite method for delivering powerful effectors into cells of the host immune system where they inhibit signaling cascades and block the cells’ response to infection. Understanding the molecular mechanisms of this system has provided insight into the processes of phagocytos...

A prospective study was performed to assess the effectiveness of the API 20E in the identification of 183 Yersinia isolates incubated at 28 degrees C for 18 to 24 h. The results showed an overall correct-identification rate of 90%, with positive predictive values for Yersinia enterocolitica and Yersinia frederiksenii of 94 and 92%, respectively. Yersinia intermedia results were unacceptable.

Yersinia enterocolitica-like strains are usually understudied. In this work, we reported the draft genome sequences of two Yersinia frederiksenii, two Yersinia intermedia, and two Yersinia kristensenii strains isolated from humans, animals, food, and the environment in Brazil. These draft genomes will provide better molecular characterizations of these species.