Abstract:
Members of the genus Acinetobacter are described as gram-negative, strictly aerobic diplococcoid rods that are oxidase negative and catalase positive. The genus includes at least 19 genomic species, defined on the basis of DNA relatedness criteria, which are ubiquitous in nature and have become increasingly responsible for a range of systemic infections in critically ill and immunocompromised patients. In most clinical microbiology laboratories, identification of Acinetobacter cannot routinely be achieved at the genospecies level because commercial identification systems are substantially deficient and poorly discriminatory in distinguishing these organisms. This implies that local data on the prevalence of individual species in human infections should be interpreted cautiously. In this article we describe a case study of community acquired Acinetobacter radioresistens. Bacteriae have been isolated from blood culture was isolate from one child, 9 month age, hospitalized in oncology sections, with the usual method of identification, the medium was seeded with blood cultures, it not developed in McK agar, but grows very well on blood agar at 37⁰C for 24 h. Biochemical confirmation was achieved using galleries API 20 NF. In conclusion, it is very important to identify Acinetobacter radioresistens accurately because of being a silent source of carbapenem resistance for Acinetobacter spp.
