Clinical distribution and drug resistance of Acinetobacter baumannii

Objective To investigate the isolation rate,distribution and trend of drug resistance of Acinetobacter baumannii from 2004 to 2010.Methods French bioMerieux VITEK32 bacterial identification system was used for identification.The K-B method was used for drug sensitivity test and the results of drug sensitivity test was determined using the CLSI /NCCLs standard.Results 26 670 specimens were analyzed from 2004 to 2010.7 065 bacterial strains isolated from the positive samples,of which 6.67%(471 /7 065) was Acinetobacter baumannii strains.The isolation rate of Acinetobacter baumannii was 1.77%.409 strains were isolated from sputum samples accounted for 86.83% of the total number of Acinetobacter baumannii isolates.The isolation rate is the highest in the ICU ward(49.3%).Acinetobacter baumannii resistance to antimicrobial drugs is generally higher,and showing a trend of increasing,and some exhibit multidrug resistance characteristics.Conclusion There is a trend of increase in drug resistance in Acinetobacter baumannii.We should pay attention to clinical Acinetobacter baumannii infection and separation;beware of multi-resistance in Acinetobacter baumannii nosocomial infections and outbreaks.