distribution of class i integron among isolates of acinetobacter baumannii recoverd from burn patients

b ackground : acinetobacter baumannii , is an important opportunistic pathogens   responsible   for   nosocomial   infections.   the   aim   of   this experiment  was  to  determine  prevalence  of  class  i  integron  in   a. baumannii strains isolated from burn patients in mottahari hospital and the drug susceptibility pattern. methods : there were 69 acinetobacter isolates, 68 (98.5%) were identified as a . baumannii . antimicrobial susceptibility of these isolates were determined by a disk diffusion method. pcr assay for detection of bla oxa-51 like gene (for identity confirmation) and inti was performed. r esults :   the  most  effective  antibiotic  for  treating   a.  baumannii   was colistin, followed by tetracyclin and tobramycin. the presence of integron class  i  was  detected  in  14.49%  of  isolates.  esbl  and  carbapenemase production were observed in 10% and 24.6% of isolates, respectively. conclusion : due to the high resistance of strains lacking integron i, the findings are although class i integrons are disseminated among clinical isolates  of   a.  baumannii ,  at  present  research,  they  they  do  not  play important role in dissemination of antibiotic resistance genes in mottahari hospital in tehran, iran.