OBJECTIVE To investigate the distribution and antibiotics resistance of gram-negative bacilli in intensive care unit(ICU)and direct clinical medication.METHODS The distribution and antibiotic susceptibility of gramnegative bacilli isolated from various specimens of infected patients in ICU delivered from July 1,2011 to June 30,2012 were investigated.RESULTS A total of 1056 strains of pathogens were isolated,most of which were infected in the respiratory tract,accounting for 77.9%;the predominant ones were P...