In the last years, importance of Enterococcus has been increasing because it is now known as causal agent of difficult-to-treat nosocomial infections, mainly due to their antimicrobial resistance. We identified Enterococcus strains using selective media to isolate it, differential assays for strains identification, and standarized disk-diffussion methods to assess antimicrobial susceptibility. Between march and november 1996, 113 strains of Enterococcus were isolated, 65,4% of which come from vaginal discharges, and the remainder from seminal fluid, urine specimens, faringeal secretions, ascitid fluid, sputum, skin wounds samples, prostatic fluid and uretral fluid. E. faecalis give a total of 88,5% of isolates, followed by E. faeccium, E. pseudoavium, E. avium, E. durans y E. raffinosus. Antibiogram analysis using 13 antimicrobial single drugs and another 2 combined with betalactamase-in...

Objetivos: Comprobar la actividad antimicrobiana de tres biovariedades de tara frente a cepas de Staphylococcus aureus sensibles y resistentes a oxacilina. Diseño: Es un estudio descriptivo prospectivo analítico. institución: Instituto de Medicina Tropical Daniel A. Carrión, Facultad de Medicina, UNMSM. Material biológico: Se evaluó 31 cepas S. aureus oxacilina sensibles y 29 resistentes, aisladas de muestras clínicas, frente a tres cocimientos de tara de las zonas de Huamanga, Huarochirí y Tarma. Intervenciones: Se preparó el cocimiento de tara y se impregnó discos en blanco para utilizarlos como un antibiograma por disco difusión. Principales medidas de resultados: Diámetro de los halos de inhibición. Resultados: Los tres cocimientos presentaron actividad antimicrobiana frente a las cepas de Staphylococcus aureus; el cocimiento de Huamanga tuvo mayor halo de inhibición fr...

Objectives: To determine three tara’s biovarieties antimicrobial activity against oxacillin sensitive and resistant Staphylococcus aureus strains. Design: Descriptive, prospective, analytical study. Setting: Instituto de Medicina Tropical Daniel A. Carrion, Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, Peru. Biologic material: Three tara biovarieties and Staphylococcus aureus strains. Interventions: Thirty-one S. aureus oxacillin-sensitive strains and 29 oxacillin-resistant strains isolated from clinical samples were studied against three tara varieties obtained in Huamanga, Huarochiri and Tarma. Tara’s poaching was prepared and blank discs were soaked in to use as antibiogram by disc difussion. Main outcome measures: Inhibition halos diameter. Results: All three poachings showed antimicrobial activity against Staphylococcus aureus strains; Huamanga’s poachi...