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ABSTRACT: Background
The 2013-2016 Ebola epidemic in West Africa resulted in accelerated development of rapid diagnostic tests for emergency outbreak preparedness. We describe the development and evaluation of the Idylla™ prototype Ebola virus test, a fully automated sample-to-result molecular diagnostic test for rapid detection of Zaire ebolavirus (EBOV) and Sudan ebolavirus (SUDV).Methods
The Idylla™ prototype Ebola virus test can simultaneously detect EBOV and SUDV in 200 µL of whole blood. The sample is directly added to a disposable cartridge containing all reagents for sample preparation, RNA extraction, and amplification by reverse-transcription polymerase chain reaction analysis. The performance was evaluated with a variety of sample types, including synthetic constructs and whole blood samples from healthy volunteers spiked with viral RNA, inactivated virus, and infectious virus.Results
The 95% limits of detection for EBOV and SUDV were 465 plaque-forming units (PFU)/mL (1010 copies/mL) and 324 PFU/mL (8204 copies/mL), respectively. In silico and in vitro analyses demonstrated 100% correct reactivity for EBOV and SUDV and no cross-reactivity with relevant pathogens. The diagnostic sensitivity was 97.4% (for EBOV) and 91.7% (for SUDV), the specificity was 100%, and the diagnostic accuracy was 95.9%.Conclusions
The Idylla™ prototype Ebola virus test is a fast, safe, easy-to-use, and near-patient test that meets the performance criteria to detect EBOV in patients with suspected Ebola.
SUBMITTER: Cnops L
PROVIDER: S-EPMC5050460 | biostudies-literature | 2016 Oct
REPOSITORIES: biostudies-literature
Cnops Lieselotte L Van den Eede Peter P Pettitt James J Heyndrickx Leo L De Smet Birgit B Coppens Sandra S Andries Ilse I Pattery Theresa T Van Hove Luc L Meersseman Geert G Van Den Herrewegen Sari S Vergauwe Nicolas N Thijs Rein R Jahrling Peter B PB Nauwelaers David D Ariën Kevin K KK
The Journal of infectious diseases 20160530 suppl 3
<h4>Background</h4>The 2013-2016 Ebola epidemic in West Africa resulted in accelerated development of rapid diagnostic tests for emergency outbreak preparedness. We describe the development and evaluation of the Idylla™ prototype Ebola virus test, a fully automated sample-to-result molecular diagnostic test for rapid detection of Zaire ebolavirus (EBOV) and Sudan ebolavirus (SUDV).<h4>Methods</h4>The Idylla™ prototype Ebola virus test can simultaneously detect EBOV and SUDV in 200 µL of whole bl ...[more]