Distribution and Drug Resistance of Pathogenic Bacteria Causing Hospital Nosocomial Infection Between 2005 and 2006 in Our Hospital

OBJECTIVE:To evaluate the distribution and drugs resistance of pathogenic bacteria causing nosocomial infection over 2 years in our hospital.METHODS:A total of 4 653 strains of pathogens were analyzed statistically by retrospective study.RESULTS:Among 4 653 strains of pathogens,709 were fungi(15.2%),1 078 were Gram-positive cocci(23.2%)and 2 866 were Gram-negative bacilli(61.6%).Over the 2 years,the detection rates of extended spectrum β-lactamase-producing Escherichia coli and Klebsiella spp.were 36.5% and 27.9%,respectively.The average resistance rate of Gram-positive cocci to penicillin,oxacillin,cefazolin,erythromycin,Co-trimoxazole and ciprofloxacin over the 2 years were 84.5%.The average resistance rate of Gram-negative bacilli to ampicillin was 96.0% and to cefotaxime,cefepime,gentamycin,Co-trimoxazole,ciprofloxacin and aztreonam were 52.7% in 2 years.CONCLUSION:Over the 2 years,Gram-negative bacilliin strains causing hospital nosocomial infections increased,Gram-positive cocci strains remain stable,but fungous infection showed a decline tendency.In view of the increasing drug resistance,rational use of antimicrobial agents should be stressed in the clinic.