Bloodstream infection by Acinetobacter radioresistens: the first case report in Brazil

This report is the description of the first case in Brazil of community-acquired bloodstream infection caused byAcinetobacter radioresistens. A 73-year-old male patient with Alzheimer ’ s and Parkinson ’ s disease was hospitalized and diagnosed with pneumonia at a general hospital. MacConkey agar pure culture was obtained from blood cultures. Conventional tests identified the isolate as Acinetobacter baumannii complex. However, the matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) technique identified it as Acinetobacter radioresistens. The isolate was sensitive to all antibiotics tested by the disk diffusion method, including carbapenem. However, blaoxa-23 gene was detected by the polymerase chain reaction (PCR) assay. Acinetobacter radioresistens can be considered an important agent of opportunistic infections in immunocompromised patients, a potential disseminator of resistance genes.RESUMEN Este reporte es la descripci ón del primer caso en Brasil de bacteriemia por Acinetobacter radioresistens adquirida en la comunidad. Paciente masculino de 73 anos de edad, portador de las enfermedades de Alzheimer y de Parkinson, fue atendido en un hospital general y diagnosticado con cuadro de neumonía. Cultivo puro en agar MacConkey fue obtenido de hemocultivos. Pruebas convencionales identificaron el aislado como complejo Acinetobacter baumannii, pero el sistema desorción/ionización láser asistida por matriz-tiempo de vuelo (MALDI-TOF) lo identificó co...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - Category: Pathology Source Type: research