The Acinetobacter baumannii,Acinetobacter pittii,and Acinetobacter nosocomialis are major species of Acinetobacter sppisolated from the clinical submitted specimens.In recent years,as the opportunistic pathogens,the A.pittii has become one of most important pathogens causing nosocomial infections,and it was reported in some literatures that it had surpassed the A.baumannii.Given the three species of Acinetobacter had the similar phenotype,the commercialized method was restricted for the correct identificati...