| dc.description.abstract |
Fascioliasis, a snail-borne zoonotic disease recognized by the World Health Organization
as a neglected tropical disease, significantly impacted human and livestock
health and economies, affecting over 700 million animals and 180 million humans are
at risk of infection. This dissertation addressed the limited understanding of Fasciola
hepatica transmission dynamics by developing a mathematical model exploring various
scenarios, including stability analysis, bifurcation, sensitivity, optimal control,
and cost-effectiveness. Model analysis revealed that snail mortality rate as a key
factor in disease spread, with optimal control strategies, derived via the Pontryagin
maximum principle, indicating that combined pasture management, cattle treatment,
and molluscicide use effectively reduce transmission. Cost-effectiveness analysis
identified pasture management with molluscicides as the most efficient strategy,
further enhanced by integrating molluscicide use with cattle treatment. The study
concluded that integrated control strategies, incorporating public health education,
treatment, and molluscicide application, offer the most substantial and immediate
reduction in fascioliasis in both cattle and human populations, providing a basis for
effective global interventions. |
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