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Cirkulation av ESBL-producerande Escherichia coli mellan människa, djur och miljö: En litteraturstudie ur ett One Health-perspektiv
University of Skövde, School of Health Sciences.
University of Skövde, School of Health Sciences.
2025 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesisAlternative title
Circulation of ESBL-producing Escherichia coli between humans, animals and the environment : A literature review from a One Health approach (English)
Abstract [sv]

Bakgrund: Antibiotikaresistens utgör ett växande globalt folkhälsoproblem. Spridningen av Extended Spectrum Beta-Lactamase (ESBL)-producerande Escherichia coli är särskilt problematisk, eftersom bakterien förekommer inom humanmedicin, djurhållning och miljörelaterade sammanhang. Detta möjliggör cirkulation av resistenta bakterier mellan olika domäner och motiverar ett integrerat One Health-perspektiv.

Syfte: Syftet med denna litteraturstudie var att, ur ett One Health-perspektiv, sammanställa och syntetisera hur ESBL-producerande E. coli cirkulerar mellan människa, djur och miljö samt att identifiera centrala strukturella områden med potential att begränsa spridningen.

Metod: Studien genomfördes som en kvalitativ litteraturstudie där 20 vetenskapliga originalartiklar med empiriska data inkluderades. Materialet analyserades med tematisk analys enligt Braun och Clarke. Endast studier som explicit behandlade ESBL-producerande E. coli och som hade koppling till minst två One Health-domäner inkluderades.

Resultat: Analysen resulterade i fyra övergripande teman: (1) miljö med fokus på vatten-, sanitets- och avloppssystem, (2) djurhållning och livsmedelssystem, (3) hushåll och samhällskontext samt (4) genomisk övervakning. Resultaten visar att cirkulationen av ESBL-producerande E. coli i hög grad formas av strukturella förhållanden och återkommande exponeringar inom sammanlänkade system snarare än av enskilda överföringstillfällen.

Slutsats: Studien visar att spridningen av ESBL-producerandeE. coli är ett komplext och tvärsektoriellt problem som kräver integrerade och långsiktiga insatser. One Health-ramverket är centralt för att identifiera strukturella angreppspunkter och utveckla hållbara strategier för att begränsa antibiotikaresistens.

Abstract [en]

Background: Antibiotic resistance is an increasing global public health challenge. The spread of Extended-Spectrum Beta-Lactamase (ESBL)-producing Escherichia coli is particularly concerning, as the bacterium occurs across human, animal, and environmental contexts. This enables the circulation of resistant bacteria between domains and highlights the relevance of a One Health perspective.

Aim: The aim of this literature review was to synthesize, from a One Health perspective, how ESBL-producing E. coli circulates between humans, animals, and the environment, and to identify key structural areas with potential to limit its spread.

Method: This study was conducted as a qualitative literature review. A total of 20 peer-reviewed original research articles based on empirical data were included. The material was analysed using thematic analysis according to Braun and Clarke. Only studies explicitly addressing ESBL-producing E. coli and involving at least two One Health domains were included.

Results: The analysis identified four overarching themes: (1) environmental factors, including water, sanitation, and wastewater systems; (2) animal husbandry and food systems; (3) household and community contexts; and (4) genomic surveillance. The findings indicate that the circulation of ESBL-producing E.coli is largely shaped by structural conditions and recurrent exposures within interconnected systems rather than by isolated transmission events.

Conclusion: The study demonstrates that the spread of ESBL-producing E. coli is a complex, cross-sectoral issue requiring integrated and long-term approaches. The One Health framework is essential for identifying structural points of intervention and developing sustainable strategies to limit antibiotic resistance.

Place, publisher, year, edition, pages
2025. , p. 49
Keywords [en]
Extended Spectrum Beta-Lactamase- producing Escherichia coli, One Health approach, Antibiotic resistance, public health science, structural factors
Keywords [sv]
Extended Spectrum Beta-Lactamase-producerande Escherichia coli, One-Health-perspektiv, antibiotikaresistens, Folkhälsovetenskap, strukturella faktorer
National Category
Public Health, Global Health and Social Medicine
Identifiers
URN: urn:nbn:se:his:diva-26158OAI: oai:DiVA.org:his-26158DiVA, id: diva2:2038007
Subject / course
Public Health Science
Educational program
Public Health Science: Infection Prevention and Control - Master’s Programme 60 ECTS
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Examiners
Available from: 2026-02-12 Created: 2026-02-12 Last updated: 2026-02-12Bibliographically approved

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1718192021222320 of 26
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