Prevalence of Mycobacterium Bovis infection and associated risk factors among dairy farm cattle in Mekelle and Wukro towns, Northern Ethiopia.

Prevalence of Mycobacterium Bovis infection and associated risk factors among dairy farm cattle in Mekelle and Wukro towns, Northern Ethiopia.

Publication date: Aug 23, 2025

Bovine tuberculosis (BTB), caused by Mycobacterium bovis, contributes significantly to human tuberculosis in developing countries, accounting for 10-15% of cases in Ethiopia. This study assessed the prevalence of BTB and associated risk factors in dairy cattle in Mekelle city and Wukro town, North Ethiopia, and evaluated farm workers’ awareness of its zoonotic significance. A cross-sectional study (2020-2021) tested 240 dairy cows using comparative intradermal tuberculin skin testing and cultured 140 milk samples. BTB prevalence was 7. 1% by skin test (7. 5% in Mekelle, 6. 3% in Wukro) and 4. 1% by culture. Risk factors significantly associated with infection included large herd size, poor management, adult age, exotic breeds, and poor body condition. Only 20% of farm owners and 14% of workers were aware of BTB’s zoonotic risk. These findings underscore the need for targeted public education and the implementation of control measures to reduce BTB transmission and protect public health. Without intervention, both animal productivity and human health remain at continued risk.

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Concepts Keywords
Accounting Animals
Cows Cattle
Cultured Cross-Sectional Studies
Tuberculosis Dairy farm
Dairying
Ethiopia
Farmers
Farms
Female
Humans
Milk
Mycobacterium bovis
Mycobacterium Bovis
Prevalence
Prevalence
Risk Factors
Tuberculin Test
Tuberculin test
Tuberculosis, Bovine
Zoonoses
Zoonosis

Semantics

Type Source Name
disease MESH infection
disease MESH Bovine tuberculosis
disease MESH tuberculosis
pathway KEGG Tuberculosis
disease IDO intervention
pathway REACTOME Reproduction
disease IDO bacteria
disease IDO host
disease IDO zoonosis
disease IDO country
disease IDO production
drug DRUGBANK Pyrazinamide
disease MESH causality
disease MESH uncertainty
drug DRUGBANK p-Phenylenediamine
drug DRUGBANK Etoperidone
drug DRUGBANK Diethylstilbestrol
drug DRUGBANK Coenzyme M
drug DRUGBANK Sulfanilamide
drug DRUGBANK Idoxuridine
drug DRUGBANK (S)-Des-Me-Ampa
disease MESH Zoonoses

Original Article

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