Evidence map›Paper›PMID 37014917›Full record

ArticlePLoS pathogens2023

Back-to-Africa introductions of Mycobacterium tuberculosis as the main cause of tuberculosis in Dar es Salaam, Tanzania.

Michaela Zwyer, Liliana K Rutaihwa, Etthel Windels, Jerry Hella, Fabrizio Menardo, Mohamed Sasamalo, Gregor Sommer, Lena Schmülling, Sonia Borrell, Miriam Reinhard and 34 more

Abstract read
In one paragraph

Article in PLoS pathogens, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–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

16 citing papers in PubMed.

  1. Molecular Characterization of theAntibiotics (Basel, Switzerland) · 2026
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  7. Variability in intrinsic drug tolerance inAntimicrobial agents and chemotherapy · 2025
    Article
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  10. Review
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  13. Comparative Genomic Analysis ofTropical medicine and infectious disease · 2024
    Article
  14. Review
  15. Article
  16. Article
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

44 authors.

Michaela ZwyerDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Liliana K RutaihwaDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Etthel WindelsDepartment of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland.
Jerry HellaDepartment of Intervention and Clinical Trials, Ifakara Health Institute, Bagamoyo, Tanzania.
Fabrizio MenardoDepartment of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland.
Mohamed SasamaloDepartment of Intervention and Clinical Trials, Ifakara Health Institute, Bagamoyo, Tanzania.
Gregor SommerInstitut für Radiologie und Nuklearmedizin, Hirslanden Klinik St. Anna, Luzern, Switzerland.
Lena SchmüllingKlinik für Radiologie und Nuklearmedizin, Department Theragnostik, Universitätsspital Basel, Basel, Switzerland.
Sonia BorrellDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Miriam ReinhardDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Anna DötschDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Hellen HizaDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Christoph StrittDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
George SikalengoDepartment of Intervention and Clinical Trials, Ifakara Health Institute, Bagamoyo, Tanzania.
Lukas FennerInstitute for Social and Preventive Medicine, University of Bern, Bern, Switzerland.
Bouke C De JongUnit of Mycobacteriology, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Midori Kato-MaedaDivision of Pulmonary and Critical Care Medicine, University of California, San Francisco, California, United States of America.
Levan JugheliDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Joel D ErnstDivision of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States.
Stefan NiemannMolecular and Experimental Mycobacteriology, Borstel Research Centre, Borstel, Germany.
Leila JeljeliMolecular and Experimental Mycobacteriology, Borstel Research Centre, Borstel, Germany.
Marie BallifInstitute for Social and Preventive Medicine, University of Bern, Bern, Switzerland.
Matthias EggerInstitute for Social and Preventive Medicine, University of Bern, Bern, Switzerland.
Niaina RakotosamimananaInstitut Pasteur de Madagascar, Antananarivo, Madagascar.
Dorothy Yeboah-ManuBacteriology Department, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana.
Prince AsareBacteriology Department, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Accra, Ghana.
Bijaya MallaDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Horng Yunn DouNational Institute of Infectious Diseases and Vaccinology, National Health Research Institute, Zhunan, Taiwan.
Nicolas ZetolaBotswana-UPenn Partnership, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
Robert J WilkinsonWellcome Center for Infectious Diseases Research in Africa, Cape Town, South Africa.
Helen CoxInstitute of Infectious Diseases and Molecular Medicine and the Wellcome Centre for Infectious Disease Research in Africa, University of Cape Town, Cape Town, South Africa.
E Jane CarterDivision of Pulmonary and Critical Care Medicine, Warren Alpert School of Medicine at Brown University, Providence, Rhode Island, United States of America.
Joachim GnokoroCentre de Prise en Charge de Recherche et de Formation, Abidjan, Côte d'Ivoire.
Marcel YotebiengDivision of General Internal Medicine, Department of Medicine, Albert Einstein College of Medicine, New York, New York, United States of America.
Eduardo GotuzzoInstituto de Medicina Tropical "Alexander von Humboldt", Universidad Peruana Cayetano Heredia, Lima, Perú.
Alash'le AbimikuInstitute of Human Virology (IHVN), Abuja, Nigeria.
Anchalee AvihingsanonHIV-NAT, Thai Red Cross AIDS Research Centre and Center of Excellence in Tuberculosis, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Zhi Ming XuSwiss Institute of Bioinformatics, Lausanne, Switzerland.
Jacques FellaySwiss Institute of Bioinformatics, Lausanne, Switzerland.
Damien PortevinDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Klaus ReitherUniversity of Basel, Basel, Switzerland.
Tanja StadlerDepartment of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland.
Sebastien GagneuxDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Daniela BritesDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland.ORCID 0000-0002-8090-2287

Funding

North American AIDS Cohorts on Collaboration and Design (NAACCORD)U01AI069918 · NIAID · JOHNS HOPKINS UNIVERSITY · PI Keri Nicole Althoff, RICHARD Douglas MOORE · 2006 to 2026
$65.2M
East Africa International Epidemiology Database to evaluate AIDS (IeDEA) Regional ConsortiumU01AI069911 · NIAID · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI AGGREY SEMWENDERO SEMEERE, Kara Kay Wools-Kaloustian · 2006 to 2026
$57.7M
Observational Antiretroviral Studies In Southern Africa (OASIS) CollaborationU01AI069924 · NIAID · UNIVERSITAT BERN · PI Cleophas Chimbetete, Mary-Ann Davies · 2006 to 2026
$55.9M
The Asia-Pacific HIV Research CollaborationU01AI069907 · NIAID · FOUNDATION FOR AIDS RESEARCH · PI ANNETTE H SOHN · 2006 to 2026
$44.8M
CCASAnet: Caribbean, Central and South America NetworkU01AI069923 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Pedro Enrique Cahn, Jessica L Castilho · 2006 to 2026
$41.6M
"Enhancing Cancer Research in Central Africa IeDEA"U01AI096299 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI Denis Nash, Marcel Yotebieng · 2011 to 2026
$35.8M
WADA (West Africa Database on Antiretroviral Therapy) CollaborationU01AI069919 · NIAID · UNIVERSITY OF BORDEAUX II · PI Didier Koumavi Ekouevi, Antoine Jaquet · 2006 to 2026
$29.9M
NIAID NIH HHS U01 AI069907NIAID NIH HHS U01 AI069911NIAID NIH HHS U01 AI069918NIAID NIH HHS U01 AI069919NIAID NIH HHS U01 AI069923NIAID NIH HHS U01 AI069924NIAID NIH HHS U01 AI096299Wellcome Trust
6 · The paper itself

Abstract

In settings with high tuberculosis (TB) endemicity, distinct genotypes of the Mycobacterium tuberculosis complex (MTBC) often differ in prevalence. However, the factors leading to these differences remain poorly understood. Here we studied the MTBC population in Dar es Salaam, Tanzania over a six-year period, using 1,082 unique patient-derived MTBC whole-genome sequences (WGS) and associated clinical data. We show that the TB epidemic in Dar es Salaam is dominated by multiple MTBC genotypes introduced to Tanzania from different parts of the world during the last 300 years. The most common MTBC genotypes deriving from these introductions exhibited differences in transmission rates and in the duration of the infectious period, but little differences in overall fitness, as measured by the effective reproductive number. Moreover, measures of disease severity and bacterial load indicated no differences in virulence between these genotypes during active TB. Instead, the combination of an early introduction and a high transmission rate accounted for the high prevalence of L3.1.1, the most dominant MTBC genotype in this setting. Yet, a longer co-existence with the host population did not always result in a higher transmission rate, suggesting that distinct life-history traits have evolved in the different MTBC genotypes. Taken together, our results point to bacterial factors as important determinants of the TB epidemic in Dar es Salaam.

Indexed as

Mycobacterium tuberculosisTuberculosisGenotypeHumansTanzaniaVirulence

Identifiers

PMID37014917
PMCPMC10104295

What OpenQuestion holds

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Registered trials

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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.