Twenty years of West Nile virus spread and evolution in the Americas visualized by Nextstrain

Autoři: James Hadfield aff001;  Anderson F. Brito aff002;  Daniele M. Swetnam aff003;  Chantal B. F. Vogels aff002;  Ryan E. Tokarz aff004;  Kristian G. Andersen aff005;  Ryan C. Smith aff004;  Trevor Bedford aff001;  Nathan D. Grubaugh aff002
Působiště autorů: Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America aff001;  Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, United States of America aff002;  Department of Pathology, Microbiology and Immunology, University of California, Davis, Davis, California, United States of America aff003;  Department of Entomology, Iowa State University, Ames, Iowa, United States of America aff004;  Department of Immunology and Microbiology, Scripps Research, La Jolla, California, United States of America aff005;  Scripps Research Translational Institute, La Jolla, California, United States of America aff006
Vyšlo v časopise: Twenty years of West Nile virus spread and evolution in the Americas visualized by Nextstrain. PLoS Pathog 15(10): e32767. doi:10.1371/journal.ppat.1008042
Kategorie: Review
doi: 10.1371/journal.ppat.1008042


It has been 20 years since West Nile virus first emerged in the Americas, and since then, little progress has been made to control outbreaks caused by this virus. After its first detection in New York in 1999, West Nile virus quickly spread across the continent, causing an epidemic of human disease and massive bird die-offs. Now the virus has become endemic to the United States, where an estimated 7 million human infections have occurred, making it the leading mosquito-borne virus infection and the most common cause of viral encephalitis in the country. To bring new attention to one of the most important mosquito-borne viruses in the Americas, we provide an interactive review using Nextstrain: a visualization tool for real-time tracking of pathogen evolution ( Nextstrain utilizes a growing database of more than 2,000 West Nile virus genomes and harnesses the power of phylogenetics for students, educators, public health workers, and researchers to visualize key aspects of virus spread and evolution. Using Nextstrain, we use virus genomics to investigate the emergence of West Nile virus in the U S, followed by its rapid spread, evolution in a new environment, establishment of endemic transmission, and subsequent international spread. For each figure, we include a link to Nextstrain to allow the readers to directly interact with and explore the underlying data in new ways. We also provide a brief online narrative that parallels this review to further explain the data and highlight key epidemiological and evolutionary features ( Mirroring the dynamic nature of outbreaks, the Nextstrain links provided within this paper are constantly updated as new West Nile virus genomes are shared publicly, helping to stay current with the research. Overall, our review showcases how genomics can track West Nile virus spread and evolution, as well as potentially uncover novel targeted control measures to help alleviate its public health burden.

Klíčová slova:

Bird genomics – Birds – Genome analysis – Mosquitoes – Phylogeography – Viral evolution – Viral genomics – West Nile virus


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Hygiena a epidemiologie Infekční lékařství Laboratoř

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2019 Číslo 10

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