TY - JOUR A1 - Maurano, Matthew T. A1 - Ramaswami, Sitharam A1 - Zappile, Paul A1 - Dimartino, Dacia A1 - Boytard, Ludovic A1 - Ribeiro-dos-Santos, André M. A1 - Vulpescu, Nicholas A. A1 - Westby, Gael A1 - Shen, Guomiao A1 - Feng, Xiaojun A1 - Hogan, Megan S. A1 - Ragonnet-Cronin, Manon A1 - Geidelberg, Lily A1 - Marier, Christian A1 - Meyn, Peter A1 - Zhang, Yutong A1 - Cadley, John A1 - Ordoñez, Raquel A1 - Luther, Raven A1 - Huang, Emily A1 - Guzman, Emily A1 - Arguelles-Grande, Carolina A1 - Argyropoulos, Kimon V. A1 - Black, Margaret A1 - Serrano, Antonio A1 - Call, Melissa E. A1 - Kim, Min Jae A1 - Belovarac, Brendan A1 - Gindin, Tatyana A1 - Lytle, Andrew A1 - Pinnell, Jared A1 - Vougiouklakis, Theodore A1 - Chen, John A1 - Lin, Lawrence H. A1 - Rapkiewicz, Amy A1 - Raabe, Vanessa A1 - Samanovic, Marie I. A1 - Jour, George A1 - Osman, Iman A1 - Aguero-Rosenfeld, Maria A1 - Mulligan, Mark J. A1 - Volz, Erik M. A1 - Cotzia, Paolo A1 - Snuderl, Matija A1 - Heguy, Adriana T1 - Sequencing identifies multiple early introductions of SARS-CoV-2 to the New York City region Y1 - 2020/12/01 JF - Genome Research JO - Genome Research SP - 1781 EP - 1788 DO - 10.1101/gr.266676.120 VL - 30 IS - 12 UR - http://genome.cshlp.org/content/30/12/1781.abstract N2 - Effective public response to a pandemic relies upon accurate measurement of the extent and dynamics of an outbreak. Viral genome sequencing has emerged as a powerful approach to link seemingly unrelated cases, and large-scale sequencing surveillance can inform on critical epidemiological parameters. Here, we report the analysis of 864 SARS-CoV-2 sequences from cases in the New York City metropolitan area during the COVID-19 outbreak in spring 2020. The majority of cases had no recent travel history or known exposure, and genetically linked cases were spread throughout the region. Comparison to global viral sequences showed that early transmission was most linked to cases from Europe. Our data are consistent with numerous seeds from multiple sources and a prolonged period of unrecognized community spreading. This work highlights the complementary role of genomic surveillance in addition to traditional epidemiological indicators. ER -