Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.

<h4>Background</h4>While overall rates of meningococcal disease have been declining in the United States for the past several decades, New York City (NYC) has experienced two serogroup C meningococcal disease outbreaks in 2005-2006 and in 2010-2013. The outbreaks were centered within dru...

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Main Authors: Ifeoma Ezeoke, Madeline R Galac, Ying Lin, Alvin T Liem, Pierce A Roth, Andrew Kilianski, Henry S Gibbons, Danielle Bloch, John Kornblum, Paula Del Rosso, Daniel A Janies, Don Weiss
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0202615
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author Ifeoma Ezeoke
Madeline R Galac
Ying Lin
Alvin T Liem
Pierce A Roth
Andrew Kilianski
Henry S Gibbons
Danielle Bloch
John Kornblum
Paula Del Rosso
Daniel A Janies
Don Weiss
author_facet Ifeoma Ezeoke
Madeline R Galac
Ying Lin
Alvin T Liem
Pierce A Roth
Andrew Kilianski
Henry S Gibbons
Danielle Bloch
John Kornblum
Paula Del Rosso
Daniel A Janies
Don Weiss
author_sort Ifeoma Ezeoke
collection DOAJ
description <h4>Background</h4>While overall rates of meningococcal disease have been declining in the United States for the past several decades, New York City (NYC) has experienced two serogroup C meningococcal disease outbreaks in 2005-2006 and in 2010-2013. The outbreaks were centered within drug use and sexual networks, were difficult to control, and required vaccine campaigns.<h4>Methods</h4>Whole Genome Sequencing (WGS) was used to analyze preserved meningococcal isolates collected before and during the two outbreaks. We integrated and analyzed epidemiologic, geographic, and genomic data to better understand transmission networks among patients. Betweenness centrality was used as a metric to understand the most important geographic nodes in the transmission networks. Comparative genomics was used to identify genes associated with the outbreaks.<h4>Results</h4>Neisseria meningitidis serogroup C (ST11/ET-37) was responsible for both outbreaks with each outbreak having distinct phylogenetic clusters. WGS did identify some misclassifications of isolates that were more distant from the outbreak strains, as well as those that should have been included based on high genomic similarity. Genomes for the second outbreak were more similar than the first and no polymorphism was found to either be unique or specific to either outbreak lineage. Betweenness centrality as applied to transmission networks based on phylogenetic analysis demonstrated that the outbreaks were transmitted within focal communities in NYC with few transmission events to other locations.<h4>Conclusions</h4>Neisseria meningitidis is an ever changing pathogen and comparative genomic analyses can help elucidate how it spreads geographically to facilitate targeted interventions to interrupt transmission.
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spelling doaj.art-1a9543f68c9b46ae82e57db2d28f783e2022-12-21T19:10:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-011311e020261510.1371/journal.pone.0202615Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.Ifeoma EzeokeMadeline R GalacYing LinAlvin T LiemPierce A RothAndrew KilianskiHenry S GibbonsDanielle BlochJohn KornblumPaula Del RossoDaniel A JaniesDon Weiss<h4>Background</h4>While overall rates of meningococcal disease have been declining in the United States for the past several decades, New York City (NYC) has experienced two serogroup C meningococcal disease outbreaks in 2005-2006 and in 2010-2013. The outbreaks were centered within drug use and sexual networks, were difficult to control, and required vaccine campaigns.<h4>Methods</h4>Whole Genome Sequencing (WGS) was used to analyze preserved meningococcal isolates collected before and during the two outbreaks. We integrated and analyzed epidemiologic, geographic, and genomic data to better understand transmission networks among patients. Betweenness centrality was used as a metric to understand the most important geographic nodes in the transmission networks. Comparative genomics was used to identify genes associated with the outbreaks.<h4>Results</h4>Neisseria meningitidis serogroup C (ST11/ET-37) was responsible for both outbreaks with each outbreak having distinct phylogenetic clusters. WGS did identify some misclassifications of isolates that were more distant from the outbreak strains, as well as those that should have been included based on high genomic similarity. Genomes for the second outbreak were more similar than the first and no polymorphism was found to either be unique or specific to either outbreak lineage. Betweenness centrality as applied to transmission networks based on phylogenetic analysis demonstrated that the outbreaks were transmitted within focal communities in NYC with few transmission events to other locations.<h4>Conclusions</h4>Neisseria meningitidis is an ever changing pathogen and comparative genomic analyses can help elucidate how it spreads geographically to facilitate targeted interventions to interrupt transmission.https://doi.org/10.1371/journal.pone.0202615
spellingShingle Ifeoma Ezeoke
Madeline R Galac
Ying Lin
Alvin T Liem
Pierce A Roth
Andrew Kilianski
Henry S Gibbons
Danielle Bloch
John Kornblum
Paula Del Rosso
Daniel A Janies
Don Weiss
Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.
PLoS ONE
title Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.
title_full Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.
title_fullStr Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.
title_full_unstemmed Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.
title_short Tracking a serial killer: Integrating phylogenetic relationships, epidemiology, and geography for two invasive meningococcal disease outbreaks.
title_sort tracking a serial killer integrating phylogenetic relationships epidemiology and geography for two invasive meningococcal disease outbreaks
url https://doi.org/10.1371/journal.pone.0202615
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