Association of class 1 integrons of Acinetobacter baumannii with resistance

Objective To monitor the distribution of class 1 integrons of Acinetobacter baumannii and interpret the association of class 1 integrons with the resistance in clinical isolates.Methods Susceptibility to 14 different antimicrobial agents was determined by agar dilution method.DNA of all clinical isolates was extracted to detect class 1 integrons by PCR.Results The differences between integron-positive isolates and integron-negative isolates was significant in the resistance to all tested antibiotics except for Imipenem,Cefepime and Cefoperazone plus Sulbactam.Different types of class 1 integrons showed different resistance types.Conclusions There were some close relations of class 1 integrons with multi-drug resistance as well as resistance types in Acinetobacter baumannii.