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Background: Cystic echinococcosis (CE), which is one of the most severe helminth zoonosis, can seriously threaten human health and hinder the development of livestock industry. Health education has widely disseminated and does play an important role in controlling and eliminating the spread of CE. Assessing the crucial factors of health education are essential for optimizing health education strategies to mitigate this disease.Methods: A compartment model involving health education was formulated. The next generation matrix approach was adopted to calculate the basic reproduction number R0, and the Lyapunov Direct method was used to investigate the global asymptotically stability of equilibria. Partial rank correlation coefficient (PRCC), a global sensitively analysis method, was employed to determine the key factors of R0. Numerical simulations were further given to evaluate the effects of health education on the transmission of CE.Results: The dynamics of the model is completely determined by the basic reproduction number R0. If R0R0>1 the disease persists. The positive effect of health education was theoretically verified. And the disposal of infected sheep entrails (deeply burial and no feeding dogs) are the most important factors that affect the value of R0 and the spread of CE.Conclusions: Health education is an effective strategy to prevent and control the spread of CE. The disposal of infected sheep entrails (especially, deeply burial and no feeding dogs) should be emphasized in health education products. This can strengthen herdsmen's awareness of disposal infected sheep entrails and then mitigate the spread of CE. |
