Culture-free bacterial detection and identification from blood with rapid, phenotypic, antibiotic susceptibility testing

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Abstract

The current culture-based approach for the diagnosis of bloodstreams infection is incommensurate with timely treatment and curbing the prevalence of multi-drug resistant organisms (MDROs) due to its long time-to-result. Bloodstream infections typically involve extremely low (e.g., <10 colony-forming unit (CFU)/mL) bacterial concentrations that require a labor-intensive process and as much as 72 hours to yield a diagnosis. Here, we demonstrate a culture-free approach to achieve rapid diagnosis of bloodstream infections. An immuno-detection platform with intrinsic signal current amplification was developed for the ultrasensitive, rapid detection, identification (ID) and antibiotic susceptibility testing (AST) of infections. With its capability of monitoring short-term (1-2 hours) bacterial growth in blood, the platform is able to provide 84-minute simultaneous detection and ID in blood samples below the 10 CFU/mL level and 204-minute AST. The susceptible-intermediate-resistant AST capacity was demonstrated.

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APA

Shi, X., Kadiyala, U., Vanepps, J. S., & Yau, S. T. (2018). Culture-free bacterial detection and identification from blood with rapid, phenotypic, antibiotic susceptibility testing. Scientific Reports, 8(1). https://doi.org/10.1038/s41598-018-21520-9

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