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Your search keyword '"Ferreira, Alex Guerra"' showing total 3 results
Start Over Author "Ferreira, Alex Guerra" Publisher elsevier biomedical
3 results on '"Ferreira, Alex Guerra"'

1. Panton-Valentine leukocidin (PVL) gene carriage among Staphylococcus aureus strains with SCCmec types I, III, IV, and V recovered from cystic fibrosis pediatric patients in Brazil.

Author

Lima DF, Brazão NB, Folescu TW, Neves FP, Ferreira AG, Santos EA, Marques EA, and Leão RS

Subjects
Brazil epidemiology, Genotype, Humans, Molecular Epidemiology, Molecular Typing, Prevalence, Bacterial Toxins genetics, Cystic Fibrosis complications, Exotoxins genetics, Leukocidins genetics, Methicillin-Resistant Staphylococcus aureus genetics, Methicillin-Resistant Staphylococcus aureus isolation & purification, Staphylococcal Infections microbiology, Virulence Factors genetics
Abstract

The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) is increasing in patients with cystic fibrosis (CF). We report a molecular characterization, antimicrobial resistance, and Panton-Valentine leukocidin (PVL) toxin gene detection of MRSA strains from 28 Brazilian pediatric CF patients (1 strain per patient). A significant proportion (50%) of MRSA SCCmec IV isolates was observed. Nearly half of MRSA strains harboring the PVL genes distributed in all SCCmec types detected. Multilocus sequence typing (MLST) analyses showed majority (57.1%) of the isolates belonged to known epidemic lineages, such as UK/EMRSA-3, Pediatric/USA 800, Southwest Pacific clone, and Brazilian/Hungarian clone. To our knowledge, this is the first Brazilian study of molecular epidemiology based on MLST and SCCmec typing and the first description of PVL genes in MRSA from CF patients., (© 2013.)

Published
2014
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2. Escherichia coli producing KPC-2 carbapenemase: first report in Brazil.

Author

D'Alincourt Carvalho-Assef AP, Leão RS, da Silva RV, Ferreira AG, Seki LM, Asensi MD, and Marques EA

Subjects
Bacterial Typing Techniques, Brazil, DNA Fingerprinting, Electrophoresis, Gel, Pulsed-Field, Escherichia coli classification, Escherichia coli drug effects, Humans, Microbial Sensitivity Tests, Escherichia coli enzymology, Escherichia coli isolation & purification, Escherichia coli Infections microbiology, beta-Lactamases biosynthesis
Published
2010
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3. First report of Paenibacillus cineris from a patient with cystic fibrosis.

Author

Leão RS, Pereira RH, Ferreira AG, Lima AN, Albano RM, and Marques EA

Subjects
Anti-Bacterial Agents therapeutic use, Brazil, Gram-Positive Bacterial Infections complications, Gram-Positive Bacterial Infections drug therapy, Humans, Lung Diseases complications, Lung Diseases drug therapy, Opportunistic Infections complications, Opportunistic Infections drug therapy, Cystic Fibrosis microbiology, Gram-Positive Bacterial Infections microbiology, Lung Diseases microbiology, Opportunistic Infections microbiology, Paenibacillus isolation & purification
Abstract

We describe the recovery of Paenibacillus cineris from a Brazilian cystic fibrosis (CF) patient. Paenibacillus spp. are mainly environmental organisms. Although the role that these species play in lung disease is not known, we highlight the importance of careful attention to unusual bacteria from respiratory secretions of CF patients.

Published
2010
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