About the Authors
Department of Biology, Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, Pennsylvania, United States of America
Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America
Department of Global Health, School of Public Health and Health Services, The George Washington University, Washington, D.C., United States of America
Wadsworth Center, New York State Department of Health, Albany, New York, United States of America
The J. Craig Venter Institute, Rockville, Maryland, United States of America
Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
Division of Infectious Diseases, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MN EH. Performed the experiments: RB SG KS JT DS NS EG. Analyzed the data: MN. Wrote the paper: MN CV LS RB SG KS JT DS NS EG JKT EH. Performed the sequence analysis: MN. Advised on epidemiological aspects of the study: CV LS. Collected a subset of the viral samples: RB SG KS JT. Undertook the viral genome sequencing: DS NS EG. Advised on virological aspects of the study: JKT.