Abstract
Acinetobacter species are gram-negative coccobacilli ubiquitousin nature and widely distributed in the environment. Acinetobacter baumannii isa bacteria commonly seen in the hospital setting, responsible for causinga wide range of bloodstream infections, urinary tract infections, secondary meningitis, infective endocarditis, and wound infections, and is the cause of outbreaks mainly due to its antimicrobial resistance patterns. The use of broad-spectrum antibiotic coverage with carbapenems is essential in the hospital setting. Therefore, carbapenem-resistantAcinetobacter baumannii(CRAB) poses as a very challenging pathogen.Acinetobacter radioresistens, a rare species in comparison to the more prevalentAcinetobacter baumannii, isan underestimated agent in causing nosocomial infections and also is a potential disseminator of resistance genes.It is also resistant to gamma radiation at 4-8 times higher than other Acinetobacter spp. andis the source of the class D OXA-23 carbapenemase that can confer carbapenem resistance. Therefore,immediate and precise identification of A. radioresistens is crucial for the clinical management of multidrug-resistant bacteremia.
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