Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

SBPT

Publication continuous and bimonthly

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Phenotypic and genotypic study of macrolide resistance of Streptococcus pneumoniae strains isolated in hospitals in Porto Alegre, in the state of Rio Grande do Sul, Brazil

Estudo fenotípico e genotípico da resistência aos macrolídeos de "Streptococcus pneumoniae" isolados em hospitais de Porto Alegre - RS

Fabiana Rowe Zettler, Eduardo Walker Zettler, Virginia Minghelli Schmitt, Marina Tagliaro Jahns, Cícero Armídio Gomes Dias, Carlos Cezar Fritscher

J Bras Pneumol.2005;31(4):312-317

Abstract PDF PT PDF EN Portuguese Text

Objective: The aim of this study was to determine the prevalence of macrolide-resistant S. pneumoniae and to identify its phenotypic and genotypic characteristics. Methods: Strains of S. pneumoniae isolated in the city of Porto Alegre between May 2002 and August 2004 from samples collected from different anatomical sites were analyzed. For the agar diffusion test, disks of erythromycin, clarithromycin, azithromycin and clindamycin were used. The minimum inhibitory concentrations of erythromycin were determined for macrolide-resistant isolates by the agar dilution method. Macrolide-resistant isolates were phenotyped by agar diffusion test and genotyped by polymerase chain reaction. Results: A total of 229 pneumococcal strains were evaluated, 12 (5.2%) of which were macrolide-resistant. Among the 12 resistant strains, 9 (75%) presented the MLSB phenotype, and 3 (25%) presented the M phenotype. Polymerase chain reaction testing indicated that 8 MLSB phenotype isolates harbored the ermB gene only, whereas the mefE gene was present in all 3 M phenotype isolates. One MLSB phenotype isolate presented both genes. Conclusion: In Porto Alegre, the S. pneumoniae resistance to macrolides is still low since such resistance is due primarily to the presence of the ermB gene expressing the MLSB phenotype.

 



Nodular measles pneumonia: a case report

Pneumonia nodular por sarampo: relato de caso

Eduardo Walker Zettler, Jussara Fiterman Molinari

J Bras Pneumol.1998;24(6):379-381

Abstract PDF PT

The authors report the case of an adolescent with bilateral interstitial bronchopneumonia caused by measles. They discuss this rare presentation and the usefulness of thorax CT scan for the diagnosis of this disease.

 


Keywords: Measles. Pneumonia. CT scan.

 


 

 


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CNPq, Capes, Ministério da Educação, Ministério da Ciência e Tecnologia, Governo Federal, Brasil, País Rico é País sem Pobreza
Secretariat of the Brazilian Journal of Pulmonology
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Fone/fax: 0800 61 6218/ (55) (61) 3245 1030/ (55) (61) 3245 6218
E-mails: jbp@jbp.org.br
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