Objective:To search for pathogen distribution of hospital-acquired pneumonia and their sensitivity to antibiotics.Methods:156 strains were isolated from 557 in patients in respiratory department and intensive care units from 2002 to 2004 of our hospital

and the sensitivity rates to antibiotics were analyzed by drug sensitivity test.Results:Of the 156 strains

66.03% were Gram-negative bacilli

with 20.51% as Pseudomonas aeruginosa

11.54% Encherichia coli

and 9.62% Klebsiella pneumonia

and the sensitivity rates of the 6 species of Gram-negative bacilli to imipenem were high;27.56% were Gram-positive cocci

were 15.38% as Staphylococus Aureus

and 8.97% Streptococcus pneumoniae

which were sensitive to vancomycin;10.7% were Fungi(8 strains of Candida albicans).Conclusions:The main isolated pathogens from HAP patients were Gram-negative bacilli

and the sensitive rate of which to imipenem was the highest

to cefoperazone-sulbactam was the second

and 6.41% of the HAP patients accompanied fungus infection.