How to determine blood culture contamination?

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Contamination frequency was similar in community versus hospital-onset, E. faecalis versus E. faecium, and number of BC drawn per day” Khatib et al (2016).

Abstract:

We retrospectively evaluated adult cases with Enterococcus spp. in 1 blood culture (BC) (1/1/2010-12/31/2015; n=294) and stratified them into bacteremia or contamination. Contamination frequency was similar in community versus hospital-onset, E. faecalis versus E. faecium, and number of BC drawn per day. Contamination predictors were vancomycin-resistance, ampicillin-resistance, commensal organism copresence, and nonurinary/abdominal sources.

Reference:

Khatib, R., Labalo, V., Sharma, M., Johnson, L.B. and Riederer, K. (2016) Enterococcus spp. in a single blood culture: bacteremia or contamination? Diagnostic Microbiology and Infectious Disease. December 15th. [Epub ahead of print].

DOI: 10.1016/j.diagmicrobio.2016.12.005

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