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| Xavier,D.B.; Bernal,F.E.M.; Almeida,R.T.. |
| It was studied whether vancomycin-resistant enterococci (VRE) colonize poultry raised without receiving antimicrobial growth promoters (AGP), in non-intensive production systems. A total of 200 cloacal swabs were colleted in farms (n=40) of eight different regions of the Distrito Federal. After selective isolation, the typical enterococcal colonies were submitted to the multiplex PCR to identify enterococcal species (E. faecalis, E. faecium, E. gallinarum, and E. casseliflavus), and genes coding for high-level vancomycin resistance phenotypes. No VRE were found in the examined samples. The prevalence rates were higher for E. gallinarum (n=26; 13.0%) and E. casseliflavus (n=11; 5.5%). It was found remarkable differences in the prevalence of E. gallinarum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Frango caipira; Enterococcus; Resistência à vancomicina; VRE. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000600036 |
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| d'Azevedo,Pedro Alves; Santiago,Kelly Aline de Souza; Furtado,Guilherme Henrique Campos; Xavier,Diego Batista; Pignatari,Antonio Carlos Campos; Titze-de-Almeida,Ricardo. |
| The reduction in time required to identify vancomycin-resistant enterococci (VRE) has gained increased importance during hospital outbreaks. In the present study, we implemented a laboratory protocol to speed up the VRE screening from rectal samples. The protocol combines a medium for selective VRE isolation (VREBAC®, Probac, São Paulo) and a multiplex PCR for detection and identification of vanA and vanB resistance genes. The screening performance was analyzed in 114 specimens collected from four intensive care units. The swabs were collected at two periods: (1) during a VRE outbreak (February 2006, n=83 patients) and (2) at the post-outbreak period, after adoption of infection control measures (June 2006, n=31 patients). Forty-one/83 VRE (49.4%) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterococcus; VRE; Vancomycin; Diagnostic; PCR. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000400010 |
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| Tresoldi,Antonia T.; Cardoso,Luis Gustavo O.; Castilho,Giane V.; Dantas,Sônia R. P. E.; von Nowakonski,Angela; Pereira,Ricardo M.; Trabasso,Plínio. |
| Vancomycin-resistant enterococci (VRE) are important pathogens involved in nosocomial infections. Colonization precedes infection and the number of colonized individuals is about 10 times higher than the number of infected patients. We examined VRE colonization in two intensive care units from October 2003 to June 2004. Perirectal swab specimens were obtained from all patients, starting on the 5th day after admission, and then weekly. A total of 249 swabs were obtained from 112 patients. Nine patients had VRE-positive swabs, giving a positive rate of 8.0%. The rate of patients colonized by V-R E. faecalis was 1.8% (n=2), 4.5% by V-R E. gallinarun (n=5) and 1.8% by V-R E. casseliflavus (n=2). No V-R E. faeciun was isolated. None of the patients that had... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vancomycin-resistant enterococci; VRE; Colonization. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000400004 |
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| Alves,Geraldo da Silva; Pereira,Monalessa Fábia; Bride,Lais de Lima; Nunes,Ana Paula Ferreira; Schuenck,Ricardo Pinto. |
| ABSTRACT Vancomycin-resistant Enterococcus faecium (VREfm) has emerged as an important global nosocomial pathogen, and this trend is associated with the spread of high-risk clones. Here, we determined the genetic and phenotypic features of 93 VREfm isolates that were obtained from patients in 13 hospitals in Vitória, Espírito Santo, Brazil, during 2012-2013. All the isolates were vancomycin-resistant and harbored the vanA gene. Only 6 (6.5%) of the VREfm isolates showed the ability to form biofilm. The 93 isolates analyzed belong to a single pulsed-field gel electrophoresis lineage and presented six subtypes. MLST genotyping showed that all VREfm belonged to ST412 (the high-risk clone, hospital-adapted). The present study describes the dissemination of... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Enterococcus faecium; VRE; ST412; Biofilm. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000600656 |
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| Selim,Samy. |
| Eleven essential oils (EOs) were evaluated for their antibacterial properties, against Vancomycin-Resistant Enterococci (VRE) and E. coli O157:H7. EOs were introduced into Brain Heart Infusion agar (BHI) (15ml) at a concentration of 0.25 to 2% (vol/vol) to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for each pathogen evaluated. Results showed that the most active essential oils against bacteria tested were thyme oil, with MIC90 and MBC90 for the VRA strains of 0.25% and 0.5%, respectively. Eucalyptus, juniper and clove oils were the least potent agent, with MIC90 and MBC90 of 2%. Furthermore, the inhibitory effect of these EO were evaluated against VRE and E. coli O157:H7, experimentally inoculated (10³... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oils; VRE; E. coli O157:H7; Feta soft cheese; Minced beef meat. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100023 |
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| Zanella,Rosemeire Cobo; Lima,Marisa de Jesus Castro; Tegani,Luciana Soares; Hitomi,Adriana; Brandileone,Maria Cristina de Cunto; Palazzo,Izabel Cristina V.; Darini,Ana Lúcia da Costa. |
| In Brazil, vancomycin-resistant enterococci (VRE) have been reported as nosocomial pathogens since 1998. Recently, in a VRE surveillance in a hospital, we detected two Enterococcus faecalis isolates with vanA genotype and susceptible to teicoplanin. This is the first report of VanB phenotype-vanA genotype enterococci isolated from humans in Brazil. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Enterococci; VanA genotype; VanB phenotype; Vancomycin; VRE. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200004 |
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| Registros recuperados: 10 | |
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