This is the first study initiated in Argentina to establish the presence of species of Nocardia from soil samples. These samples were gathered in different areas of Tucumán. Thirty three pathogenic strains of Nocardia were isolated by the paraffin bait method. Out of them, 28 were N. brasiliensis, 3 N. asteroides and 2 N. caviae. N. brasiliensis was widely distributed in the soil of the areas tested. It is proved that N. caviae, so rarely found in other regions of the world, occurs in Tucumán. A detailed study of the morphological and physiological characteristics for identification is discussed.
Pichia anomala es una levadura oportunista emergente, ocasionalmente responsable de graves infecciones hospitalarias en lactantes y niños inmunocomprometidos. En este trabajo describimos la presencia de P. anomala en sangre de 13 niños cateterizados en el Hospital del Niño Jesús de Tucumán (Argentina), en un periodo de 5 años. Estos representan el 9,71% de 350 muestras de sangre de pacientes pediátricos internados en unidades de terapia intermedia, cuidados intensivos y sala de oncología. P. anomala fue tan frecuente como Candida tropicalis en los hemocultivos examinados en el período en estudio. Teniendo en cuenta que la manipulación frecuente de catéteres y su uso prolongado favorecen el desarrollo de fungemia causadas por esta levadura, creemos imprescindible realizar mayores estudios epidemiológicos para determinar su real importancia clínica.
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