id author title date pages extension mime words sentences flesch summary cache txt cord-350172-w3yoxhsg Mertens, Pascal Development and Potential Usefulness of the COVID-19 Ag Respi-Strip Diagnostic Assay in a Pandemic Context 2020-05-08 .txt text/plain 7563 336 47 Introduction: COVID-19 Ag Respi-Strip, an immunochromatographic (ICT) assay for the rapid detection of SARS-CoV-2 antigen on nasopharyngeal specimen, has been developed to identify positive COVID-19 patients allowing prompt clinical and quarantine decisions. Regarding the COVID-19 pandemic and the urgency of sharing relevant data, in this original research article we describe the analytical performance of the COVID-19 Ag Respi-Strip according to the requirements of the current European Directive 98/79/EC (9) , the future European Regulation 2017/746 on in vitro diagnostic (IVD) medical devices (10) , the Scandinavian SKUP-protocol (11) used for the validation of qualitative tests and the clinical performance obtained with a multi-centric retrospective study. Overall, 328 nasopharyngeal samples from symptomatic patients suspected of SARS-CoV-2 infections attending from 19th to 30th March 2020 in three university laboratories located in Belgium were tested following the manufacturer's instructions to assess the clinical sensitivity, clinical specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy in order to propose a diagnostic algorithm adapted to the current situation. ./cache/cord-350172-w3yoxhsg.txt ./txt/cord-350172-w3yoxhsg.txt