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| Registros recuperados: 16 | |
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| Guidoni,Eliana Biondi Medeiros; Berezin,Eitan N.; Nigro,Stanley; Santiago,Nataly A; Benini,Vanda; Toporovski,Julio. |
| Knowledge about antimicrobial resistance patterns of the etiological agents of urinary tract infections (UTIs) is essential for appropriate therapy. Urinary isolates from symptomatic UTI cases attended at Santa Casa University Hospital of São Paulo from August 1986 to December 1989 and August 2004 to December 2005 were identified by conventional methods. Antimicrobial resistance testing was performed by Kirby Bauer's disc diffusion method. Among the 257 children, E. coli was found in 77%. A high prevalence of resistance was observed against ampicillin and TMP/SMX (55% and 51%). The antibiotic resistance rates for E. coli were: nitrofurantoin (6%), nalidixic acid (14%), 1st generation cephalosporin (13%), 3rd generation cephalosporins (5%), aminoglycosides... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urinary tract infection; Pediatrics urinary tract infection; Bacterial resistance; Escherichia coli. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000400013 |
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| Martini,Rosiéli; Hörner,Rosmari; Graichen,Daniel Ângelo Sganzerla. |
| Abstract In recent years, several studies have described the clinical impact of bacterial infection associated with transfusion of platelet concentrates (PCs). Among the blood components, PCs are responsible for the highest rates of bacterial contamination as well as septic transfusion reactions. We assessed antimicrobial susceptibility profile, resistance to methicillin (MRCoNS), and resistance to macrolides, lincosamides and streptogramins of group B (MLSB) of 16 coagulase-negative staphylococci (CoNS) isolates from an investigation in 691 PCs bags. We then compared conventional and automated phenotypic methods, disc diffusion test (DD) and VITEK(r) 2, respectively as well as phenotypic and genotypic methods (Polymerase Chain Reaction - PCR). All CoNS... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial resistance; Staphylococcus sp; Platelet concentrates; MecA; Erm.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000100609 |
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| Melo,D.A.; Motta,C.C.; Rojas,A.C.C. M.; Soares,B.S.; Coelho,I.S.; Coelho,S.M.O.; Souza,M.M.S.. |
| ABSTRACT This study aimed to identify Coagulase-Negative Staphylococci (CoNS) species isolated from bovine mastitis, through phenotypic and PCR-RFLP (Restriction Fragment Length Polymorphism-Polimerase Chain Reaction) methods and to compare both techniques to matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) technique. Among them, the PCR-RFLP method, using a partially conserved sequence of the groEL gene, is a promising alternative, because of its reproducibility and reliability. On the other hand, the proteomic technique MALDI-TOF MS provides an accurate and much faster diagnosis and has been increasingly employed in microbiological identification. The pheno-genotypic profiles of beta-lactam resistance were also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus spp.; Bacterial resistance; PCR-RFLP and MALDI-TOF MS. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000200368 |
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| Maboni,Grazieli; Gressler,Leticia T.; Espindola,Julia P.; Schwab,Marcelo; Tasca,Caiane; Potter,Luciana; Vargas,Agueda Castagna de. |
| The aim of this study was to determine the differences in the antimicrobial susceptibility profiles of Moraxella bovis, M. bovoculi and M. ovis. Thirty-two strains of Moraxella spp. isolated from cattle and sheep with infectious keratoconjunctivitis were tested via broth microdilution method to determine their susceptibility to ampicillin, cefoperazone, ceftiofur, cloxacillin, enrofloxacin, florfenicol, gentamicin, neomycin, oxytetracycline and penicillin. The results demonstrated that Moraxella spp. strains could be considered sensitive for most of the antimicrobials tested in this study, but differences between the antimicrobial susceptibility profiles of these three Moraxella species were found. M. bovis might differ from other species due to the higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial resistance; Broth microdilution; Eye disease. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200545 |
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| Meirelles-Pereira,Frederico de; Pereira,Angela de Meirelles Santos; Silva,Márcio Cataldo Gomes da; Gonçalves,Verônica Dias; Brum,Paulo Roberto; Castro,Almeida Ribeiro de; Pereira,Alexandre Adler; Esteves,Francisco de Assis; Pereira,José Augusto Adler. |
| In view of the intimate relationship of humans with coastal lagoons (used for recreation, tourism, water supply, etc.), the discharge of domestic effluents may lead to the establishment of routes of dissemination of pathogenic microorganisms, including microorganisms carrying genes for resistance to antimicrobials, through the surrounding human communities. The objective of the present investigation was to relate the presence of antimicrobial-resistant bacteria to the environmental characteristics of three coastal lagoons, comparing the results with those from hospital sewage. Of the lagoons evaluated, two (Geribá and Imboassica) receive domestic sewage discharge, and the other (Cabiúnas) is still in a natural state. We isolated in a culture medium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial resistance; Eutrophication; Sanitary microbiology; Environmental microbiology. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000400002 |
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| Santos,Daniella Fabíola dos; Pimenta,Fabiana Cristina; Alves,Rodrigo; Montalvão,Edlaine Rodrigues; Santos,Daniela Braz dos; Carmo Filho,José Rodrigues do. |
| This study was developed to evaluate the prevalence of extended-spectrum β-lactamases (ESBL) producing Klebsiella pneumoniae in two hospitals (A and B) in Goiânia, GO, Brazil. The antimicrobial susceptibility of the isolates was determined using the MicroScan WalkAway (Dade Behring, USA). Tests to evaluate the genetic correlation between the isolates were also performed. For the ESBL phenotypic test, the Double-disk diffusion (DD) method was used. The strainsisolated in Hospital B were submitted to DNA analysis by pulsed-field gel electrophoresis (PFGE). The study showed high prevalence of ESBL-producing K. pneumoniae (25% in hospital A and 66.7% in hospital B), with high rates of antimicrobial resistance. The most active compound was imipenem (100%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extended-spectrum β-lactamases (ESBL); Klebsiella pneumoniae; Β-lactamases; Bacterial resistance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400002 |
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| Gouvêa,R; Santos,FF dos; Aquino,MHC de; Pereira VL de,A. |
| Fluoroquinolones are antimicrobial agents frequently used in poultry production and in human medicine. The use of such substances must comply with safety criteria, including withdrawal periods, doses, and treatment duration, as their misuse and abuse may cause bacterial resistance and the presence of residues in edible tissues. Consequently, the consumption of animal products with fluoroquinolone residues may result in the transmission of resistant bacteria. In addition, if residues are beyond the acceptable levels, fluoroquinolone active metabolites are harmful to human health. This article presents a review on the use of antimicrobials of the fluoroquinolone class in poultry production, focusing on the development of bacterial resistance to these drugs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fluoroquinolones; Bacterial resistance; Food residues; Poultry products. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100001 |
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| Machado,DN; Lopes,ES; Albuquerque,AH; Horn,RV; Bezerra,WGA; Siqueira,RAS; Lopes,IT; Nunes,FP; Teixeira,RSC; Cardoso,WM. |
| ABSTRACT The psittacine Pyrrhura griseipectus is a threatened species currently only found in Ceará State, Brazil. A microbiological survey was conducted to determine the composition of the enteric microbiota of this species, as well as the phenotypic profiles of antimicrobial susceptibility presented by the isolates. Cloacal swabs were collected from individual birds and submitted to microbiological processing. Antimicrobial susceptibility profiles were evaluated using the disk diffusion method. Bacteria of the genus Escherichia, Proteus, Citrobacter, Pantoea, Klebsiella, Enterobacter, Morganella, Hafnia, Enterobacter, and Serratia were isolated. The most frequently isolated species were Escherichia coli, Proteus mirabilis and Proteus vulgaris,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial resistance; E.coli; Psittacine; Wild birds.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100103 |
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| Silva,Nanci; Oliveira,Márcio; Bandeira,Antonio Carlos; Brites,Carlos. |
| Nosocomial infection caused by extended-spectrum beta-lactamase producing Klebsiella pneumoniae (ESBL-Kp) have been frequently reported worldwide. We have no information on such problems in Bahia, Brazil. OBJECTIVES: Evaluate the risk factors for nosocomial infections caused by ESBL-Kp, in a tertiary hospital, in Bahia, Brazil. MATERIAL AND METHODS: We evaluated all reported cases of nosocomial infections caused by ESBL-Kp in a private, tertiary hospital, in Salvador, Brazil, from 2000 through 2004. We compared patients with a diagnosis of ESBL-Kp (cases) and patients infected by non-ESBL producing K. pneumoniae (controls). Mean age, underlying disease, and frequency of invasive procedures were compared between the two groups. History of previous use of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nosocomial infections; ESBL; Klebsiella pneumoniae; Bacterial resistance. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000300007 |
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| Brites,Carlos; Silva,Nanci; Sampaio- Sá,Márcia. |
| Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) have become an increasing problem in Brazilian hospitals within the last years. In Bahia, there is scarce information on the epidemiological characteristics of MRSA infections and their determinants. The objective of this study was to evaluate the temporal evolution of MRSA infections in a private, tertiary hospital, in Salvador, the capital of the state of Bahia. We reviewed the microbiological records of bacterial isolates from the Hospital Espanhol, a 300 bed, general hospital, in Salvador. We analyzed the frequency of positive cultures for S. aureus during the last nine years, the prevalence of MRSA, and the spatial distribution of the isolates in the hospital. We also evaluated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus; MRSA; Bacterial resistance. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000400003 |
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| Registros recuperados: 16 | |
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