SciELO - Scientific Electronic Library Online

 
vol.36 número4Factores de virulencia de Vibrio cholerae no-O1 no-O139 aislados en Córdoba, ArgentinaPrevalencia de micobacteriosis y de tuberculosis en pacientes de un hospital de referencia de la provincia de Córdoba índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Bookmark


Revista argentina de microbiología

versión On-line ISSN 1851-7617

Resumen

PAZ, M.; MUZIO, H.; TEVES, S.  y  SANTINI, P.. Analysis of a Yersinia enterocoliticaisolated from human diarreic feces in Argentina. Rev. argent. microbiol. [online]. 2004, vol.36, n.4, pp. 164-169. ISSN 1851-7617.

Some serotypes of Yersinia enterocoliticamight causediarrheas and/or invasive infections. The aim of this work was to analyze virulence factors and associated markers in a strain of Y. enterocolitica isolated from human diarrheic feces. The strain analyzed was included in the biotype 1A. The virulence markers determinationas well as the search of the genes vir F and ail,were negatives. However, it was demonstratedenterotoxin production at 20 °C, andat 37 °C in osmolarity conditions and pH similar to the human intestine. The enterotoxin presented reactivity for the infant mouse test, although it could not be proven the presence of yst gene by PCR. The results obtained by us, coincident with those of other investigators,indicated that certain clinical isolates of Y. enterocolitica of the biotype 1A (“avirulent”), could be the etiological agent of the illness trhough other mechanisms of virulence, that would differ from those previously characterized in species of enteropathogenic Yersinia.

Palabras llave : Yersinia enterocolitica; virulence factors; pathogenicity; enterotoxin.

        · resumen en Español     · texto en Español     · pdf en Español