Analysis of some common pathogens and their drug resistance to antibiotics
Abstract
OBJECTIVE: To investigate the common bacterial resistance of clinical isolates in our hospital in the second half of 2011. METHODOLOGY: Pathogens isolated from clinical samples in the second half of 2011 were analyzed and categorized to perform susceptibility tests. RESULTS: In the gram-negative bacteria, Enterobacteriaceae and non-fermenting gram-negative bacilli accounted for 55.89% and 34.51%. In the gram-positive bacteria, Staphylococcus aureus, Coagulase-negative staphylococci, Enterococcus, Strptococcus pneumonia accounted for 32.85%, 40.39%, 12.41% and 10.22%, respectively. Other species accounted for 4.14%. Klebsiella pneumonia and Pseudomonas aeruginosa were sensitive to cepoperazon, cefepime and imipenem. However,Acinetobacter baumannii was more sensitive to carbapenems antibiotics, which was followed by fourth generation cephalosporins. Klebsiella pneumoniae was extremely sensitive to amikacin, cefepime and imipenem, but was resistant to ampicillin. The detection rates of the broad-spectrum Escherichia coli, Pseudomonasaeruginosa and Klebsiella pneumoniae were 54.51%, 52.08% and 38.65%. The gram negative bacilli were the prevalent clinical pathogens in our hospital in the second half of 2011. CONCLUSION: The drug resistance of pathogenic bacteria has increased significantly recently, thus the surveillance of antibacterial agents is necessary, and rational use of antibiotic will be urgently needed to reduce the production and dissemination of drug resistant strains.
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