Data/hora: 10/06/2024 11:18:24

Provedor de dados: | Brazilian Journal of Microbiology
País: | Brazil
Título: | Antimicrobial susceptibility among Enterococcus isolates from the city of Porto Alegre, RS, Brazil
Autores: | d'Azevedo,Pedro Alves; Dias,Cícero Armídio Gomes; Lemos,Sibele Krebs; Bittencourt,José Augusto Ferreira; Teixeira,Lúcia Martins.
Data: | 2004-09-01
Ano: | 2004
Palavras-chave: | Enterococcal; Antimicrobial susceptibility; Resistance.
Resumo: | Resistance to several classes of antimicrobial agents is a remarkable characteristic of enterococcal strains increasingly reported worldwide. Information about strains isolated in the southern region of Brazil is still limited. In this study, a total of 455 consecutive enterococcal isolates recovered from patients living in Porto Alegre, Brazil, were identified at species level and evaluated for their antimicrobial susceptibilities by agar diffusion testing. The most frequent species was E. faecalis (92.8%), followed by E. faecium (2.9%), E. gallinarum (1.5%), E. avium (1.1%), E. hirae (0.7%), E. casseliflavus (0.4%), E. durans (0.4%), and E. raffinosus (0.2%). According to the results of disk tests 62.0% of the strains were resistant to tetracycline, 42.6% to erythromycin, 24.8% to chloramphenicol, 22.6% to ciprofloxacin, 22.0% to norfloxacin, 3.5% to ampicillin, 3.5% to nitrofurantoin. High level resistance to aminoglycosides was found in 37.8% of the isolates, with 23.5% being resistant to gentamicin, 14.3% to streptomycin, and 2.8% to both gentamicin and streptomycin. No vancomycin resistant or b-lactamase producing isolates were found. The results indicate that a significant percentage of isolates are resistant to different antimicrobials, pointing out the need for control strategies to avoid dissemination of resistant isolates and for continuous surveillance for the detection of emerging resistance traits.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200005
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822004000200005
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.35 n.3 2004
Fonte: | info:eu-repo/semantics/openAccess