2013 – The water supply system as a potential source of fungal infection in paediatric haematopoietic stem cell units

BACKGROUND: We conducted a prospective study to investigate the presence of microfungal contamination in the water supply system of the Oncology Paediatric Institute, São Paulo-Brazil after the occurrence of one invasive Fusarium solani infection in a patient after Haematopoietic Stem Cell Transplantation (HSCT). During a twelve-month period, we investigated the water supply system of the Leer más2013 – The water supply system as a potential source of fungal infection in paediatric haematopoietic stem cell units[…]

2012 – Molecular phylogeny and phenotypic variability of clinical and environmental strains of Aspergillus flavus

Aspergillus flavus is the second most common cause of aspergillosis infection in immunocompromised patients and is responsible for the production of aflatoxins. Little is known about the population structure of A. flavus, although recent molecular and phenotypic data seem to demonstrate that different genetic lineages exist within this species. The aim of this study was Leer más2012 – Molecular phylogeny and phenotypic variability of clinical and environmental strains of Aspergillus flavus[…]

2012 – Aspergillus novoparasiticus: a new clinical species of the section Flavi

During a survey on the incidence of Aspergillus in clinical environments, we found some interesting isolates that were morphologically similar to Aspergillus parasiticus , but differed in the color of the colonies and in the pattern of their conidial ornamentation. In the present study, those isolates were characterized using a polyphasic approach. A phylogenetic analysis Leer más2012 – Aspergillus novoparasiticus: a new clinical species of the section Flavi[…]

2010 – Cross-transmission of vancomycin-resistant Enterococcus in patients undergoing dialysis and kidney transplant

The objective of this study was to investigate the occurrence of vancomycin-resistant Enterococcus (VRE) cross-transmission between two patient groups (long-term dialysis and kidney transplant patients). Molecular typing, by automated ribotyping with the RiboPrinter Microbial Characterization System (Qualicon, USA), was used to analyze VRE isolates from 31 fecal samples of 320 dialysis patients and 38 fecal Leer más2010 – Cross-transmission of vancomycin-resistant Enterococcus in patients undergoing dialysis and kidney transplant[…]

2009 – Heterogeneity of proteins expressed by Brazilian Sporothrix schenckii isolates

The profiles of proteins present in the exoantigens of Brazilian Sporothrix schenckii isolates were studied and compared by electrophoresis (SDS-PAGE). Thirteen isolates from five different regions of Brazil (1,000 to 2,000 km apart) and ten from a more limited region (200 to 400 km apart within the state of São Paulo) were cultured in Sabouraud, Leer más2009 – Heterogeneity of proteins expressed by Brazilian Sporothrix schenckii isolates[…]

2009 – Characteristics of 151 Brazilian Sporothrix schenckii Isolates from 5 Different Geographic Regions of Brazil: A Forgotten and Re-Emergent Pathogen

Abstract: We used RAPD (random amplification of polymorphic DNA) to analyze the phenotypic and genotypic characteristics of Sporothrix schenckii isolated from five geographic regions of Brazil, from clinical, animal, and environmental sources. Our results yielded a significant difference (P<0.01) in the mean conidial area of S. schenckii animal isolates (2.96 ± 1.07) compared with those Leer más2009 – Characteristics of 151 Brazilian Sporothrix schenckii Isolates from 5 Different Geographic Regions of Brazil: A Forgotten and Re-Emergent Pathogen[…]

2009 – Treatment of subcutaneous phaeohyphomycosis and prospective follow-up of 17 kidney transplant recipients

Background: Subcutaneous phaeohyphomycosis in solid organ recipients may have an adverse outcome. Objective: We sought to describe the disease course, treatment, and outcome of allograft function in kidney transplant recipients with phaeohyphomycosis. Methods: Seventeen patients were followed for a mean period of 25.4 months to analyze the clinical response to treatment. Results: There was no Leer más2009 – Treatment of subcutaneous phaeohyphomycosis and prospective follow-up of 17 kidney transplant recipients[…]

2007 – Evidence for a pseudo-outbreak of Candida guilliermondii fungemia in a university hospital in Brasil

Fungal infections due to Candida species represent an important cause of nosocomial bloodstream infections.  We report a large pseudo-outbreak of Candida guilliermondii fungemia that occurred in a university  hospital in Brazil. C. guilliermondii was identified in 64 (43%) of the 149 blood samples drawn between June  2003 and July 2004. The samples were from patients Leer más2007 – Evidence for a pseudo-outbreak of Candida guilliermondii fungemia in a university hospital in Brasil[…]

2006 – Estudo da micobiota em conjuntiva sadia de diabéticos, residentes na área urbana da cidade de São Paulo – Brasil

Objetivos: Determinar a micobiota de conjuntiva sadia em indivíduos diabéticos, segundo tipo de diabetes, idade, sexo, tempo de doença, tipo de tratamento e estádio da retinopatia. Estabelecer a micobiota anemófila nas salas de colheita. Métodos: Estudo transversal de 803 diabéticos residentes na zona urbana de São Paulo – SP/Brasil. Foi usado para primoisolamento o meio Leer más2006 – Estudo da micobiota em conjuntiva sadia de diabéticos, residentes na área urbana da cidade de São Paulo – Brasil[…]

2006 – Performance of the Albicans ID2 chromogenic medium for rapid identification of Candida albicans.

The aim of our study was to evaluate the accuracy of the chromogenic media Albicans ID2® (bioMérieux, France) for the identification of Candida albicans among 330 yeast strains. All C. albicans (100) and C. dubliniensis (20) strains exhibited blue color when cultured on Albicans ID2®. However, the blue color was also exhibited by cultures of Leer más2006 – Performance of the Albicans ID2 chromogenic medium for rapid identification of Candida albicans.[…]