Distribution and antimicrobial resistance of pathogenic bacteria in blood culture

    WEI Jun, JIA Wei, ZHOU Xiaoª²Yan

    Lab Center, Affiliated Hospital, Ningxia Medical College, Yinchuan 750004, China

    ¡¾Abstract¡¿ AIM: To investigate the distribution and antimicrobial resistance of pathogens isolated from blood specimens in patients with fever in our hospital from 1995 to 2004. METHODS: Blood specimens were cultured by Bactec 9120 Fluorescent Instruments. The colonies of the specimens yielding growth were identified by the Vitekª²32 Instruments and Kª²B method was used for the drug sensitivity tests. RESULTS: Six hundred and sixtyª²two bacteria strains were isolated from a total of 6207 blood culture specimens, with a positive rate of 10.7%. Of the identified bacteria, G+ cocci accounted for 50.3%, G- bacilli accounted for 44.7%, fungi accounted for 3.0%, and anaerobian accounted for 1.1%. The susceptibility rates of G- bacilli to Imipenem, Amikacin and cefoperazone/sulbactam were high. The susceptibility rate of G+ cocci to vancomycin and Imipenem were also high. CONCLUSION: G+ cocci prevail over G- bacilli in the blood specimens. The staphylococci are the chief bacteria in the children¬ðs blood specimens. Both G+ cocci and G- bacilli are sensitive to Imipenem. ......