OBJECTIVE To understand the clinical distribution of gram-negative pathogenic bacteria and its resistance to commonly used antibiotics,so as to provide theoretical basis for clinical rational drug usage.METHODS A total of 11583 strains of clinically isolated gram-negative pathogenic bacteria were analyzed in Ningxia People′s hospital during 2012-2016.The bacterial identification was conducted by using VITEK-2 system,the drug susceptibility testing was performed for the antibacterial agents by using disk dif...