Efficacy of educational interventions on human brucellosis: a systematic review of the literature

The global challenge of human brucellosis, a persistent zoonotic disease, highlights the limitations of control strategies focused solely on the animal reservoir. Emerging evidence suggests that interventions targeting human behavior are critical for disrupting the transmission cycle. This review consolidates contemporary research assessing the role of structured educational programs in mitigating the impact of this disease. We performed a systematic literature inquiry across major electronic databases for relevant interventional studies released from 2015 to 2025. Although the search period covered 2015 to 2025, no eligible studies were identified for the 2015–2019 period. Our search strategy employed a comprehensive set of terms associated with brucellosis and educational methodologies. The analysis included research involving high-risk demographics or individuals with a confirmed brucellosis diagnosis, from which we extracted and qualitatively synthesized data pertaining to methodological design, conceptual foundations, intervention details, and resultant outcomes. The final assessment incorporated seven studies. A consistent theme across the literature was the positive effects of educational initiatives in elevating participant understanding, shifting attitudes, and fostering the adoption of protective behaviors. Programs designed around established behavioral change models demonstrated superior outcomes, achieving psychosocial benefits and observed clinical improvements in individual studies. The maintenance of these positive changes over the reported follow-up periods was further enhanced by community-oriented and participatory delivery formats. The review also identified the growing importance of educational campaigns that align with the One Health principle, emphasizing coordinated action across human, animal, and environmental sectors. The evidence base comprises three empirical intervention studies, one simulation-based modeling study providing projected estimates and one planning/design study; conclusions regarding efficacy are drawn primarily from the empirical studies. Educational intervention represents a potentially valuable complementary component in the global effort to combat human brucellosis. For optimal impact, programs must be theoretically grounded, contextually adapted, and designed for community participation. Embedding such robust educational frameworks within broader, multi-sectoral control initiatives may support lasting reductions in disease incidence, though further rigorous studies with longer follow-up are needed to confirm population-level effectiveness.