Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic

ABSTRACT Despite tight biosecurity measures, an outbreak of respiratory disease rapidly spread across the Icelandic equine population in 2010. Horse transportation was brought to a halt in order to contain the spread of the infectious agent. In a recent article, Björnsdóttir and colleagues (S. Björn...

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Main Author: Mark R. Davies
Format: Article
Language:English
Published: American Society for Microbiology 2017-11-01
Series:mBio
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/mBio.01613-17
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author Mark R. Davies
author_facet Mark R. Davies
author_sort Mark R. Davies
collection DOAJ
description ABSTRACT Despite tight biosecurity measures, an outbreak of respiratory disease rapidly spread across the Icelandic equine population in 2010. Horse transportation was brought to a halt in order to contain the spread of the infectious agent. In a recent article, Björnsdóttir and colleagues (S. Björnsdóttir et al., mBio 8:e00826-17, 2017, https://doi.org/10.1128/mBio.00826-17 ) employ the power and resolution of “genomic epidemiology,” the combination of whole genomic sequencing and epidemiological approaches, to examine the source and spread of the outbreak. Intriguingly, the outbreak was not viral in origin, but linked to a bacterial “commensal” Streptococcus equi subsp. zooepidemicus infection. A national sampling strategy coupled with population genomics revealed that the outbreak was most likely driven by a S. equi subsp. zooepidemicus sequence type 209 (ST209) infection that spread nationally from a single source. This retrospective study demonstrates the power of genomics applied on a national scale to unravel the cause of a significant biosecurity threat.
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spelling doaj.art-57fca62a5e8e4833a548379fb863575f2022-12-21T19:28:19ZengAmerican Society for MicrobiologymBio2150-75112017-11-018510.1128/mBio.01613-17Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine EpidemicMark R. Davies0Department of Microbiology and Immunology, at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria, AustraliaABSTRACT Despite tight biosecurity measures, an outbreak of respiratory disease rapidly spread across the Icelandic equine population in 2010. Horse transportation was brought to a halt in order to contain the spread of the infectious agent. In a recent article, Björnsdóttir and colleagues (S. Björnsdóttir et al., mBio 8:e00826-17, 2017, https://doi.org/10.1128/mBio.00826-17 ) employ the power and resolution of “genomic epidemiology,” the combination of whole genomic sequencing and epidemiological approaches, to examine the source and spread of the outbreak. Intriguingly, the outbreak was not viral in origin, but linked to a bacterial “commensal” Streptococcus equi subsp. zooepidemicus infection. A national sampling strategy coupled with population genomics revealed that the outbreak was most likely driven by a S. equi subsp. zooepidemicus sequence type 209 (ST209) infection that spread nationally from a single source. This retrospective study demonstrates the power of genomics applied on a national scale to unravel the cause of a significant biosecurity threat.https://journals.asm.org/doi/10.1128/mBio.01613-17Streptococcus equi subsp. zooepidemicusequinegenome analysisgenomic epidemiologyoutbreakrespiratory pathogens
spellingShingle Mark R. Davies
Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic
mBio
Streptococcus equi subsp. zooepidemicus
equine
genome analysis
genomic epidemiology
outbreak
respiratory pathogens
title Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic
title_full Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic
title_fullStr Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic
title_full_unstemmed Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic
title_short Straight from the Horse’s “Mouth”: Genomic Epidemiology of an Icelandic Equine Epidemic
title_sort straight from the horse s mouth genomic epidemiology of an icelandic equine epidemic
topic Streptococcus equi subsp. zooepidemicus
equine
genome analysis
genomic epidemiology
outbreak
respiratory pathogens
url https://journals.asm.org/doi/10.1128/mBio.01613-17
work_keys_str_mv AT markrdavies straightfromthehorsesmouthgenomicepidemiologyofanicelandicequineepidemic