Analysis of In Vitro Antibacterial Activity of Combined-Use of Drugs Against Methicillin Resistant Staphylococcus Aureus in Respiratory Tract Infection
Objective. To investigate the In Vitro antibacterial activity of routine antibiotics on respiratory tract infections with methicillin resistant Staphylococcus aureus (MRSA) and to provide laboratory reference for the clinical treatment of MRSA respiratory tract infections. Methods. Bacteria were cultured and isolated by routine method and identified by staphylococcus aureus latex kit and VITEK II bacteria analyzer. MRSA were identified by latex coagulation method. The In Vitro antibacterial activity of antibiotic was tested by microdilution method and was analyzed according to CLSI standards. Results. 75 strains of MRSA were isolated from respiratory tract samples. The highest isolated ratio was from the departments of neurosurgery, respiratory and neurology, with 30.7%, 20.0%, and 18.7% respectively. All of the 75 strains were sensitive to Linezolid (LZD), Vancomycin (VAN) and Teicoplanin (TEC). The resistant rates of Levofloxacin (LVX) and Rifampicin (RIF) were 97.3% and 78.3% respectively. The FIC < 1 of RIF combining LZD, VAN and TEC was 25.3%–68.0%. The FIC < 1 of LVX combining LZD, VAN and TEC was 8.0%–36.0%. The difference among the combined drugs in each group had statistical significance (P < 0.01). Conclusions. The LZD, VAN and TEC, which were the best choices to treat MRSA infection, had better antibacterial activity against MRSA. Mono-antibiotic or combined-use of two species of drugs should be selected according to individual infectious cases in clinic.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: September 1, 2013
More about this publication?
- ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Ingenta Connect is not responsible for the content or availability of external websites