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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 103, No. 7, 2008, pp. 734-735
Bioline Code: oc08132
Full paper language: English
Document type: Short Communication
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 103, No. 7, 2008, pp. 734-735

 en Enterotoxigenic and nontoxigenic Bacteroides fragilis check for this species in other resources strains isolated in Brazil
Miranda, Karla R; Dias, Mariana F; Guimarães, Priscilla LS; Boente, Renata F; Pauer, Heidi; Ramos, Priscila Z; Falcão, Laís S; Ferreira, Eliane de O; Balassiano, Ilana T; Ferreira, Livia Q; dos Santos-Filho, Joaquim; de Paula, Geraldo R; Antunes, Eduardo NF; Avelar, Katia ES & Domingues, Regina MCP


The presence of enterotoxigenic Bacteroides fragilis check for this species in other resources and nontoxigenic B. fragilis (NTBF) among 109 strains isolated from 1980-2008 in Brazil were investigated by PCR. One strain, representing 0.9% of the total analyzed strains, harbored the bft gene which was identified as bft-1 isoform based on PCR-RFLP and sequencing. Forty-nine strains (44.9%) exhibited the NTBF pattern III which possesses the flanking region required for pathogenicity island acquisition in which the bftgene is codified. These data reinforce the potential of B. fragilis as an emerging enteropathogen in our country.

Bacteroides fragilis toxin - enterotoxigenic Bacteroides fragilis - nontoxigenic Bacteroides fragilis

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