Dominance of alpha and iota variants in SARS-CoV-2 vaccine breakthrough infections in New York City Ralf Duerr, Dacia Dimartino, Christian Marier, Paul Zappile, Guiqing Wang, Jennifer Lighter, Brian D. Elbel, Andrea B. Troxel, Adriana Heguy Journal of Clinical Investigation September 15, 2021 Wagner Faculty Brian Elbel