RESUMO
Objective To develop a novel multiplex polymerase chain reaction (PCR) to detect multidrug-resistant Acinetobacter baumannii.Methods One hundred and five strains of multidrug-resistance A. baumannii were isolated from January 2006 to April 2007. The bacterial DNA was obtained by boiling the pure growth of A. baumannii. All isolates were subjected to the multiplex PCR to detect genes of blaOXA-23-like,blaOXA-24-like,blaOXA-51-like,blaOXA-58-like,intI 1 and intI 2.Results Among 105 isolates,76 were positive for blaOXA-51-like,blaOXA-23-like,and intI 1,18 were positive for blaOXA-51-like and intI 1,10 were positive for blaOXA-51-like and blaOXA-23-like,1 was positive for blaOXA-51-like and blaOXA-23-like,1 was positive for blaOXA-51-like,blaOXA-23-like,and blaOXA-58-like,and all were negative for blaOXA-24-like and intI 2.Conclusion The presence of OXA carbapenemase and integrase genes was correlated with multidrug resistance in A.baumannii.