id author title date pages extension mime words sentences flesch summary cache txt cord-353209-qkhfp66l Steiner, Daniel J. Array-based analysis of SARS-CoV-2, other coronaviruses, and influenza antibodies in convalescent COVID-19 patients 2020-06-16 .txt text/plain 2517 129 45 We report a multiplex label-free antigen microarray on the Arrayed Imaging Reflectometry (AIR) platform for detection of antibodies to SARS-CoV-2, SARS-CoV-1, MERS, three circulating coronavirus strains (HKU1, 229E, OC43) and three strains of influenza. Aminereactive substrates for fabrication of AIR arrays were provided by Adarza BioSystems, Inc. For ELISA assays, SARS-CoV-2 full-length spike and RBD were produced in-house using a mammalian expression system, 20,21 as was influenza A/H1N1/California 2009 hemagglutinin. To that end, we have presented preliminary data on a 15-plex array on the AIR platform, developed in response to the need to study SARS-CoV-2 but incorporating antigens for other coronaviruses and influenza. Responses to SARS-CoV-2 antigens on the array effectively discriminated between serum samples from uninfected and COVID-19 convalescent subjects, with generally good correlation to ELISA data. ./cache/cord-353209-qkhfp66l.txt ./txt/cord-353209-qkhfp66l.txt