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- W2034781640 abstract "Background A variety of screening methods are currently used worldwide in order to decrease the risk of transfusion-transmitted sepsis and improve the safety of PCs. Methods/materials PCs inoculated with five different transfusion-relevant species of bacteria at concentrations of 1, 10, and 100 colony-forming units (CFU) ml−1 were stored at 22 °C for 7 days. Flow cytometry (FACS), BacT/Alert automated culturing, and a quantitative real-time PCR (Q-PCR) were then used to detect the presence of bacteria in samples prepared from these PCs. Results At the initial spiking concentrations of 1, 10, and 100 CFU ml−1, Q-PCR detected all five bacterial species tested. Screening with the BacT/Alert culture-based system allowed bacterial detection (inoculated on day 0) within a mean time of 15.13 h for all three spiking concentrations. Using FACS, positive signals were obtained for all three concentrations of Escherichia coli and Bacillus cereus on day 1 and for initial spiking concentrations of Pseudomonas aeruginosa and Staphylococcus aureus of 1 CFU ml−1 on day 2. For Staphylococcus epidermidis, detection of an initial inoculum of 1 CFU ml−1 was possible only beginning on day 6. Conclusion This study shows that under standard laboratory conditions the sensitivity of FACS in the detection of bacterial contamination of PCs was lower than that of either the BacT/Alert automated culturing method or Q-PCR." @default.
- W2034781640 created "2016-06-24" @default.
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- W2034781640 date "2013-12-01" @default.
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- W2034781640 title "Three different bacterial detection systems for platelet concentrates under inter-laboratory conditions" @default.
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- W2034781640 doi "https://doi.org/10.1016/j.transci.2013.07.029" @default.
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