Agar diffusion tests with cefuroxime disks for predicting ceftriaxone susceptibility among isolates of Streptococcus pneumoniae
The performance of agar diffusion tests using disks of cefuroxime (30µg) for predicting ceftriaxone susceptibility in 33 isolates of Streptococcus pneumoniae was studied. All 7 resistant isolates to ceftriaxone (MIC ³1.0 µg/ml) exhibited zones of inhibition <28mm. The procedure can be easily...
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Veröffentlicht in: | Revista de microbiologia 1998-10, Vol.29 (4), p.314-316, Article 314 |
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Sprache: | eng |
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Zusammenfassung: | The performance of agar diffusion tests using disks of cefuroxime (30µg) for predicting ceftriaxone susceptibility in 33 isolates of Streptococcus pneumoniae was studied. All 7 resistant isolates to ceftriaxone (MIC ³1.0 µg/ml) exhibited zones of inhibition <28mm. The procedure can be easily adapted to clinical laboratories.
O desempenho do teste de difusão em ágar usando-se discos de cefuroxima (30 µg) para predizer suscetibilidade à ceftriaxona foi estudado em 33 cepas de Streptococcus pneumoniae. As 7 amostras resistentes à ceftriaxona (CIM ³1.0 µg/ml) apresentaram zonas de inibição < 28mm. O teste pode ser facilmente adaptado a laboratórios clínicos. |
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ISSN: | 0001-3714 0001-3714 |
DOI: | 10.1590/S0001-37141998000400016 |