OBJECTIVE To investigate the distribution of Acinetobacter baumannii and the change in the drug resistance so as to guide the reasonable use of antibiotics and reduce the drug resistance.METHODS The distribution and drug resistance rates of the clinical isolates of Acinetobacter baumannii were statistically analyzed from 2005 to 2011.RESULTS A total of 1973 strains of A.baumannii were isolated during the past seven years,among which 85.4% were isolated from the respiratory tract,3.7% from urine,3.2% from se...