Abstract |
We tried to correlate the in vitro activity and the in vivo efficacy of voriconazole (VRC) and posaconazole (POS) against Aspergillus flavus and Aspergillus niger. The in vitro susceptibility of a large set of isolates was determined by broth microdilution and disk diffusion methods, while the in vivo efficacy was assessed in a murine model of disseminated infection. For A. flavus, VRC showed efficacy even for strains with MICs above the epidemiologic cutoff value (ECV) (1 μg/mL). For A. niger, VRC was ineffective against those strains for which the MIC was 1 dilution below the corresponding ECV (2 μg/mL). POS showed efficacy against all the strains of both species included in the study, although isolates with MICs > ECV were not tested.
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Authors | Enrique Calvo, F Javier Pastor, Deanna A Sutton, Anette W Fothergill, Michael G Rinaldi, Valentina Salas, Josep Guarro |
Journal | Diagnostic microbiology and infectious disease
(Diagn Microbiol Infect Dis)
Vol. 74
Issue 2
Pg. 158-65
(Oct 2012)
ISSN: 1879-0070 [Electronic] United States |
PMID | 22858549
(Publication Type: Journal Article)
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Copyright | Copyright © 2012 Elsevier Inc. All rights reserved. |
Chemical References |
- Antifungal Agents
- Pyrimidines
- Triazoles
- posaconazole
- Voriconazole
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Topics |
- Animals
- Antifungal Agents
(administration & dosage, pharmacology)
- Aspergillosis
(drug therapy)
- Aspergillus flavus
(drug effects)
- Aspergillus niger
(drug effects)
- Disease Models, Animal
- Male
- Mice
- Microbial Sensitivity Tests
- Pyrimidines
(administration & dosage, pharmacology)
- Treatment Outcome
- Triazoles
(administration & dosage, pharmacology)
- Voriconazole
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