An extended genotyping framework for Salmonella enterica serovar Typhi, the cause of human typhoid.
An extended genotyping framework for Salmonella enterica serovar Typhi, the cause of human typhoid.
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DOI:
10.1038/ncomms12827
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发表时间:
2016-10-05
影响因子:
16.6
通讯作者:
Holt, Kathryn E.
中科院分区:
文献类型:
--
作者:
Wong, Vanessa K.;Baker, Stephen;Connor, Thomas R.;Pickard, Derek;Page, Andrew J.;Dave, Jayshree;Murphy, Niamh;Holliman, Richard;Sefton, Armine;Millar, Michael;Dyson, Zoe A.;Dougan, Gordon;Holt, Kathryn E.
The population of Salmonella enterica serovar Typhi (S. Typhi), the causative agent of typhoid fever, exhibits limited DNA sequence variation, which complicates efforts to rationally discriminate individual isolates. Here we utilize data from whole-genome sequences (WGS) of nearly 2,000 isolates sourced from over 60 countries to generate a robust genotyping scheme that is phylogenetically informative and compatible with a range of assays. These data show that, with the exception of the rapidly disseminating H58 subclade (now designated genotype 4.3.1), the global S. Typhi population is highly structured and includes dozens of subclades that display geographical restriction. The genotyping approach presented here can be used to interrogate local S. Typhi populations and help identify recent introductions of S. Typhi into new or previously endemic locations, providing information on their likely geographical source. This approach can be used to classify clinical isolates and provides a universal framework for further experimental investigations. Typhoid fever is caused by Salmonella enterica serovar Typhi (S. Typhi). This study examines ∼2,000 clinical isolates of S. Typhi to show highly structured/geographically restricted genomes except rapidly disseminating H58 subclade, and design a genotyping framework for tracking the disease.
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影响因子:
30.8
作者:
Holt, Kathryn E.;Parkhill, Julian;Mazzoni, Camila J.;Roumagnac, Philippe;Weill, Francois-Xavier;Goodhead, Ian;Rance, Richard;Baker, Stephen;Maskell, Duncan J.;Wain, John;Dolecek, Christiane;Achtman, Mark;Dougan, Gordon
通讯作者:
Dougan, Gordon
影响因子:
3.8
作者:
Holt KE;Dolecek C;Chau TT;Duy PT;La TT;Hoang NV;Nga TV;Campbell JI;Manh BH;Vinh Chau NV;Hien TT;Farrar J;Dougan G;Baker S
通讯作者:
Baker S
影响因子:
9.4
作者:
Baker, Stephen;Holt, Kathryn;Dougan, Gordon
通讯作者:
Dougan, Gordon
影响因子:
30.8
作者:
通讯作者:
--
影响因子:
5.8
作者:
Stamatakis, Alexandros
通讯作者:
Stamatakis, Alexandros