Evidence map›Paper›PMID 34169644›Full record

SynthesisZoonoses and public health2021

Global prevalence of Mycobacterium bovis infections among human tuberculosis cases: Systematic review and meta-analysis.

Hawult Taye, Kassahun Alemu, Adane Mihret, James L N Wood, Ziv Shkedy, Stefan Berg, Abraham Aseffa

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Zoonoses and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
2.2field-weighted citation impact, top 10% of its field
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

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Review
  7. Epidemiological investigation ofOpen veterinary journal · 2026
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  12. Infectious disease reports · 2025
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  19. Evidence ofFrontiers in veterinary science · 2025
    Article
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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

7 authors at 4 institutions in 3 countries.

Hawult TayeArmauer Hansen Research Institute, Addis Ababa, Ethiopia.ORCID 0000-0002-5604-9706
Kassahun AlemuDepartment of Epidemiology and Biostatistics, University of Gondar, Gondar, Ethiopia.
Adane MihretArmauer Hansen Research Institute, Addis Ababa, Ethiopia.
James L N WoodDepartment of Veterinary Medicine, University of Cambridge, Cambridge, UK.
Ziv ShkedyDepartment of Epidemiology and Biostatistics, University of Gondar, Gondar, Ethiopia.
Stefan BergBacteriology Department, Animal and Plant Health Agency, Weybridge, UK.
Abraham AseffaArmauer Hansen Research Institute, Addis Ababa, Ethiopia.
Armauer Hansen Research Institute · ETUniversity of Gondar · ETAnimal and Plant Health Agency · GBUniversity of Cambridge · GB

Funding

Ethiopia-Emory TB Research Training ProgramD43TW009127 · FIC · EMORY UNIVERSITY · PI HENRY M BLUMBERG, Kidist Bobosha · 2013 to 2026
$3.4M
Biotechnology and Biological Sciences Research Council BB/L018977/1Economic & Social Research Council BB/L018977/1FIC NIH HHS D43 TW009127
6 · The paper itself

Abstract

Tuberculosis (TB) is a chronic communicable bacterial disease caused by Mycobacterium tuberculosis complex (MTBC) species. M. tuberculosis is the main causative agent of human TB, and cattle are the primary host of Mycobacterium bovis; due to close interaction between cattle and humans, M. bovis poses a zoonotic risk. This review summarizes and estimates the prevalence of M. bovis infection among human cases. Studies reporting TB prevalence data that were published in English during 10 years from 20 April 2009 to 17 April 2019 were identified through search of PubMed and other sources. Quality of studies and risk of bias were assessed using standard tools for prevalence study reports. Characteristics of included studies and their main findings were summarized in tables and discussed with narrative syntheses. Meta-analysis was performed on 19 included studies, with a total of 7,185 MTBC isolates identified; 702 (9.7%) of them were characterized as of subspecies M. bovis, but there was a large prevalence difference between the studies, ranging from 0.4% to 76.7%. The genotyping-based studies reported significantly lower prevalence of zoonotic TB than did the studies based on older techniques. The overall pooled prevalence of M. bovis aggregated from all included studies was 12.1% of the total MTBC isolates, while the corresponding pooled figure from the 14 genotyping-based studies was only 1.4%. Generally, human M. bovis cases reported from different countries of the world suggest that the impact of zoonotic TB is still important in all regions. However, it was difficult to understand the true picture of the disease prevalence because of methodological differences. Future investigations on zoonotic TB should carefully consider these differences when evaluating prevalence results.

Indexed as

Cattle DiseasesMycobacterium bovisMycobacterium tuberculosisTuberculosisAnimalsCattleHumansPrevalencebiochemical testinggenotypinghuman TBMycobacterium bovissystematic review and meta-analysis

Identifiers

PMID34169644
PMCPMC8487997
OpenAlexW3169068016

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.