Evidence map›Paper›PMID 25362193›Full record

ArticleThe Journal of infectious diseases2015

Tracking a tuberculosis outbreak over 21 years: strain-specific single-nucleotide polymorphism typing combined with targeted whole-genome sequencing.

David Stucki, Marie Ballif, Thomas Bodmer, Mireia Coscolla, Anne-Marie Maurer, Sara Droz, Christa Butz, Sonia Borrell, Christel Längle, Julia Feldmann and 7 more

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  14. Mutation ofFrontiers in public health · 2021
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  19. Trends of Two Epidemic Multidrug-Resistant Strains ofThe American journal of tropical medicine and hygiene · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

David StuckiSwiss Tropical and Public Health Institute University of Basel.
Marie BallifInstitute of Social and Preventive Medicine.
Thomas BodmerInstitute for Infectious Diseases, University of Bern labormedizinisches zentrum Dr Risch, Liebefeld-Bern.
Mireia CoscollaSwiss Tropical and Public Health Institute University of Basel.
Anne-Marie MaurerCantonal Health Authorities Bern.
Sara DrozInstitute for Infectious Diseases, University of Bern.
Christa ButzBernese Lung Association.
Sonia BorrellSwiss Tropical and Public Health Institute University of Basel.
Christel LängleInstitute for Infectious Diseases, University of Bern.
Julia FeldmannSwiss Tropical and Public Health Institute University of Basel.
Hansjakob FurrerDepartment of Infectious Diseases, Bern University Hospital and University of Bern.
Carlo MordasiniBernese Lung Association.
Peter HelblingFederal Office of Public Health, Bern.
Hans L RiederInstitute of Social and Preventive Medicine, University of Zurich, Switzerland Tuberculosis Department, International Union Against Tuberculosis and Lung Disease, Paris, France.
Matthias EggerInstitute of Social and Preventive Medicine School of Public Health and Family Medicine, University of Cape Town, South Africa.
Sébastien GagneuxSwiss Tropical and Public Health Institute University of Basel.
Lukas FennerSwiss Tropical and Public Health Institute University of Basel Institute of Social and Preventive Medicine.

Funding

Observational Antiretroviral Studies In Southern Africa (OASIS) CollaborationU01AI069924 · NIAID · UNIVERSITAT BERN · PI Cleophas Chimbetete, Mary-Ann Davies · 2006 to 2026
$55.9M
Mycobacterium tuberculosis antigen diversityR01AI090928 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI ERNST, JOEL D., GAGNEUX, SEBASTIEN · 2010 to 2014
$3.2M
European Research Council 309540NIAID NIH HHS AI090928NIAID NIH HHS R01 AI090928NIAID NIH HHS U01 AI069924NIAID NIH HHS U01AI069924
6 · The paper itself

Abstract

backgroundWhole-genome sequencing (WGS) is increasingly used in molecular-epidemiological investigations of bacterial pathogens, despite cost- and time-intensive analyses. We combined strain-specific single-nucleotide polymorphism (SNP) typing and targeted WGS to investigate a tuberculosis cluster spanning 21 years in Bern, Switzerland.

methodsOn the basis of genome sequences of 3 historical outbreak Mycobacterium tuberculosis isolates, we developed a strain-specific SNP-typing assay to identify further cases. We screened 1642 patient isolates and performed WGS on all identified cluster isolates. We extracted SNPs to construct genomic networks. Clinical and social data were retrospectively collected.

resultsWe identified 68 patients associated with the outbreak strain. Most received a tuberculosis diagnosis in 1991-1995, but cases were observed until 2011. Two thirds were homeless and/or substance abusers. Targeted WGS revealed 133 variable SNP positions among outbreak isolates. Genomic network analyses suggested a single origin of the outbreak, with subsequent division into 3 subclusters. Isolates from patients with confirmed epidemiological links differed by 0-11 SNPs.

conclusionsStrain-specific SNP genotyping allowed rapid and inexpensive identification of M. tuberculosis outbreak isolates in a population-based strain collection. Subsequent targeted WGS provided detailed insights into transmission dynamics. This combined approach could be applied to track bacterial pathogens in real time and at high resolution.

Indexed as

AdultAgedBacterial Typing TechniquesDisease OutbreaksDNA, BacterialFemaleGenome, BacterialGenotypeHumansMaleMiddle AgedMolecular EpidemiologyMycobacterium tuberculosisPolymorphism, Single NucleotideRetrospective StudiesSequence Analysis, DNADNA, Bacterialgenomic epidemiologyoutbreakscreeningtuberculosiswhole genome sequencing

Identifiers

PMID25362193
PMCPMC4447836

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.