Cynthia Y. Truong

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Interacting with biological systems via experiments is important for academia, industry, and education, but access barriers exist due to training, costs, safety, logistics, and spatial separation. High-throughput equipment combined with web streaming could enable interactive biology experiments online, but no such platform currently exists. We present a(More)
Health care-onset health care facility-associated Clostridium difficile infection (HO-CDI) is overdiagnosed for several reasons, including the high prevalence of C. difficile colonization and the inability of hospitals to limit testing to patients with clinically significant diarrhea. We conducted a quasiexperimental study from 22 June 2015 to 30 June 2016(More)
BACKGROUND The Clostridium difficile rate in symptomatic patients represents both those with C. difficile infection (CDI) and those with colonization. To predict the extent of CDI overdiagnosis, we compared the asymptomatic colonization rate to the symptomatic positivity rate in hospitalized patients using nucleic acid testing. METHODS Between July 2014(More)
Background. There is no stand-alone Clostridium difficile diagnostic that can sensitively and rapidly detect fecal free toxins. We investigated the performance of C. difficile PCR cycle threshold (CT) for predicting free toxin status.Method. Consecutive stool samples (n=312) positive for toxigenic C. difficile with the GeneXpert C.diff Epi tcdB PCR assay(More)
Understanding the contribution of relapse and reinfection to recurrent Clostridium difficile infection (CDI) has implications for therapy and infection prevention, respectively. We used whole genome sequencing to determine the relation of C. difficile strains isolated from patients with recurrent CDI at an academic medical center in the United States.(More)
Adaptations of mass-market consumer electronics are increasingly used to aid experimentation in engineering, life sciences, and education. Inspired by recent bioprinting and imaging research, we have developed a low-cost, networkable, scalable bioprinter with integrated imaging that enables automated fluid deposition with monitoring biological materials(More)
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