2011
DOI: 10.1016/j.ijid.2010.10.002
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Characterization of enteroaggregative Escherichia coli (EAEC) clinical isolates and their antibiotic resistance pattern

Abstract: EAEC is a diarrheal pathogen of emerging importance. Correlation between pCVD432 PCR and the HeLa cell line assay was confirmed in children with diarrhea. In comparison to the assay for aggregative adherence, the EAEC PCR has been found to be simple and specific in many epidemiological studies. The typical EAEC (73.3%) strains (with pCVD432 and aggR genes) identified in this study were heterogeneous with respect to virulence genes. This study also showed that EAEC isolates were highly resistant to tetracycline… Show more

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Cited by 85 publications
(92 citation statements)
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“…The pCVD432 gene is also widely used as an EAEC molecular marker. Some reports describe that EAEC strains identified by pCVD432 detection showed more frequent AA to HEp-2 cells than that of this study (21,24). We suggest that PCR for the pCVD432 gene, rather than the aggR gene, might be more effective for the identification of EAEC strains with AA.…”
Section: Discussioncontrasting
confidence: 41%
See 1 more Smart Citation
“…The pCVD432 gene is also widely used as an EAEC molecular marker. Some reports describe that EAEC strains identified by pCVD432 detection showed more frequent AA to HEp-2 cells than that of this study (21,24). We suggest that PCR for the pCVD432 gene, rather than the aggR gene, might be more effective for the identification of EAEC strains with AA.…”
Section: Discussioncontrasting
confidence: 41%
“…The frequency of cefotaxime-resistance is lower than that described in other reports (24,34,35). Reportedly, the frequency of antimicrobial resistance is higher in EAEC strains isolated from symptomatic cases than from asymptomatic cases (36).…”
Section: Discussionmentioning
confidence: 54%
“…A PCR method, based on identifying the presence of the virulence genes pCVD432, aggR, aggA, aafA, aap, and astA was used among EAEC isolated from fecal samples, in Tehran (19). In another study from Iran, out of 715 stool samples collected from patients showing diarrhea in Shiraz, 101 diarrhoeagenic E. coli were identified, five of which confirmed as EAEC (20).…”
Section: Introductionmentioning
confidence: 99%
“…Esse surgimento se deve à capacidade dos microrganismos, em especial as bactérias, de transmitir genes entre populações de uma mesma espécie ou até de espécies diferentes [3,28,29]. A resistência hereditária às drogas é frequentemente carregada pelos plasmídeos (moléculas circulares duplas de DNA capazes de se reproduzir independentemente do DNA cromossômico), ou por pequenos segmentos de DNA denominados transposons que podem se transpor de uma região do DNA para outra.…”
Section: Resistência Microbianaunclassified
“…Portanto, alguns plasmídeos, incluindo aqueles denominados fatores de resistência (R), podem ser transferidos entre células microbianas em uma população e entre populações microbianas diferentes, mas estreitamente relacionadas. Os fatores R frequentemente contêm genes para a resistência a muitos antimicrobianos [2,28].…”
Section: Resistência Microbianaunclassified