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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hirvonen, J. J. Lode, P. Nevalainen, M. Rantakokko Jalava, K. Kaukoranta, S. S. |
| Copyright Year | 2012 |
| Abstract | A method for the rapid detection of methicillin-sensitive and -resistant Staphylococcus aureus (MSSA and MRSA, respectively) and methicillin-resistant coagulase-negative staphylococci (MRCoNS) with a straightforward sample preparation protocol of blood cultures using an automated homogeneous polymerase chain reaction (PCR) assay, the GenomEra™ MRSA/SA (Abacus Diagnostica Oy, Turku, Finland), is presented. In total, 316 BacT/Alert (bioMérieux, Marcy l’Etoile, France) and 433 BACTEC (Becton Dickinson, Sparks, MD, USA) blood culture bottles were analyzed, including 725 positive cultures containing Gram-positive cocci in clusters (n = 419) and other Gram stain forms (n = 361), as well as 24 signal- and growth-negative bottles. Detection sensitivities for MSSA, MRSA, and MRCoNS were 99.4 % (158/159), 100.0 % (9/9), and 99.3 % (132/133), respectively. One false-positive MRSA result was detected from a non-staphylococci-containing bottle, yielding a specificity of 99.8 %. The lowest detectable amount of viable cells in the blood culture sample was 4 × 104 CFU/mL. The results were available within one hour after microbial growth detection and the two-step, time-resolved fluorometric (TRF) measurement mode employed by the GenomEra CDX™ instrument showed no interference from blood, charcoal, or culture media. The method described lacks all sample purification steps and allows reliable and simplified pathogen detection also in clinical microbiology laboratory settings without specialized molecular microbiology competence. |
| Starting Page | 2835 |
| Ending Page | 2842 |
| Page Count | 8 |
| File Format | |
| ISSN | 09349723 |
| Journal | European Journal of Clinical Microbiology & Infectious Diseases |
| Volume Number | 31 |
| Issue Number | 10 |
| e-ISSN | 14354373 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-05-26 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Medical Microbiology Internal Medicine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Infectious Diseases Microbiology (medical) |
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