Nosocomial fungal infections correlated to Candida spp.: Incidence and species distribution in the metropolitan region of Rio de Janeiro

• Autor(a) principal: Souza, Marcelo Duarte
• Data de Publicação: 2016
• Outros Autores: Neufeld, Paulo Murillo
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Vigilância Sanitária em Debate
• Texto Completo: https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/668
• topic: Candida; Hospital Infection; Epidemiology; CHROMagar-Candida; Germ Tube; Chlamydospore; MALDI-TOF; Candida; Infecção Hospitalar; Epidemiologia; CHROMagar-Candida; Tubo Germinativo; Clamidósporo; MALDI-TOF

Candida sp. is the most frequently isolated fungal agent and associated with high morbidity and mortality rates in hospitalized patients. Although well-established, the epidemiology of infections has shown wide variation in relation to the region and the period studied. The objective of this study was to evaluate the incidence and distribution of Candida species in four cities in the metropolitan region of Rio de Janeiro state in the period from 2013 to 2014. A total of one hundred strains were recovered from different health facilities of the investigated areas. For the identification of isolates, phenotypic tests (micromorphology on CHROMagar, germ tube and chlamydospore production) and mass spectrometry (MALDI-TOF/MS) were used. Of all the isolates, 68,0% belonged to the Candida non-albicans group and 32,0% belonged to the Candida albicans specie. Regarding clinical specimens, 44,0% of the studied strains were isolated from urine samples, followed by blood culture (13,0%). In this study, the hospital sector with the highest fungal recovery rate was the Intensive Care Unit, with 40% of the isolates. Among the four evaluated regions, the city of Niteroi was the one with the highest percentage of isolation (52,0%). The comparison between the four identification methods demonstrated the effectiveness and prevalence of MALDI-TOF/MS technique for the diagnosis of Candida clinical isolates. The correct identification of the etiologic agents has direct impact on the epidemiology of fungal infections and consequently, on the management, control and treatment of hospitalized patients.