Concordance of SARS-CoV-2 Antibody Results during a Period of Low Prevalence od Cheryl N. Miller, Keri N. Althoff, David J. Schlueter, Hoda Anton-Culver, Qingxia Chen, Shawn Garbett, Francis Ratsimbazafy, Isaac Thomsen, Elizabeth W. Karlson, Mine Cicek, Ligia A. Pinto, Bradley A. Malin, Lucila Ohno-Machado, Carolyn Williams, David Goldstein, Aymone Kouame, Andrea Ramirez, Kelly A. Gebo, Sheri D. Schully