Evaluation of a universal point-of-issue assay for bacterial detection in buffy coat platelet components.

Abstract:

:Bacterial contamination of platelet concentrates poses a major post-transfusion infectious risk. This study was aimed at evaluating the efficacy of the BacTx(®) assay (Immunetics Inc.) for bacterial detection in leucocyte-reduced buffy coat platelet pools and for its sensitivity in detecting clinical isolates, including bacteria that form surface-attached aggregates (biofilm positives). Platelet pools were inoculated at bacterial concentrations of 0·8-13 CFU/ml. The BacTx(®) assay detected all species at concentrations ≥10(3)  CFU/ml within 20-69 h of platelet incubation. Detection of slow-growing and biofilm-forming strains was delayed in comparison with the other strains. This assay could be used as a point-of-issue method to increase the safety of the platelet supply.

journal_name

Vox Sang

journal_title

Vox sanguinis

authors

Ramirez-Arcos S,Kou Y,Perkins H

doi

10.1111/vox.12148

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

192-5

issue

2

eissn

0042-9007

issn

1423-0410

journal_volume

107

pub_type

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