Oct 5 – 7, 2026
Hotel Berlin, Berlin
Europe/Berlin timezone
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Burden and Awareness of Zoonotic Tuberculosis in Africa: A Systematic Review and Meta-analysis

Oct 6, 2026, 9:45 AM
15m
Hall "Berlin"

Hall "Berlin"

Oral presentation Public Health Session 5: Public Health I

Speaker

Mr Guash Abay Assefa (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany; PhD Programme “Epidemiology” Braunschweig-Hannover, Germany)

Description

Zoonotic tuberculosis (zTB), caused by animal-associated members of the Mycobacterium tuberculosis complex (MTBC), remains a public health problem in Africa. Understanding both the burden of zTB and community awareness is essential for zTB interventions.
Systematic reviews and meta-analyses were conducted following PRISMA guidelines. Studies reporting laboratory-confirmed MTBC species were included to estimate the proportion of zTB among confirmed TB cases, while studies reporting awareness of zTB were included to assess knowledge levels. Random-effects models were used to pool proportions, and subgroup analyses were performed by region and population group.
Fifty-seven studies were included in the proportion review and 38 studies in the awareness review. The pooled proportion of zTB among confirmed TB cases was 2.8% (95% CI: 1.8–4.3; I²=88.8%). Higher proportions were observed in Northern Africa (15%) and occupationally exposed populations (11.8%) than in hospital-based populations (2.4%). Pooled awareness of zTB was 25.8% (95% CI: 16.7–37.7; I²=96.7%). Awareness was highest among abattoir workers (57.5%) and lower among herdsmen (22.7%), smallholder farmers (20.9%), and pastoralists (18.0%). Regional awareness ranged from 12.9% in Southern Africa to 34.4% in Western Africa.
The coexistence of measurable zTB burden and low awareness among high-risk populations highlights the need for public education, strengthened surveillance, and improved species-level diagnostics.

Keywords

Zoonotic tuberculosis; Mycobacterium bovis; awareness; One Health; Africa; meta-analysis.

Registration ID OHS26-120
Professional Status of the Speaker PhD Student
Junior Scientist Status Yes, I am a Junior Scientist.

Author

Mr Guash Abay Assefa (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany; PhD Programme “Epidemiology” Braunschweig-Hannover, Germany)

Co-authors

Dr Olga Hovardovska (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany) Dr Torben Heinsohn (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany) Mrs Lydiah Kisoo (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany; PhD Programme “Epidemiology” Braunschweig-Hannover, Germany) Mr Yaw Awuku-Larbi (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany; PhD Programme “Epidemiology” Braunschweig-Hannover, Germany) Mrs Brit Häcker (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany) Prof. Berit Lange (Department of Epidemiology, Helmholtz Centre for Infection Research, Braunschweig, Germany; German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany)

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