Global stability of an epidemic model for vector-borne disease

This paper considers an epidemic model of a vector-borne disease which has the vectormediated transmission only. The incidence term is of the bilinear mass-action form. It is shown that the global dynamics is completely determined by the basic reproduction number R 0 . If R 0 ≤ 1, the diseasefree equilibrium is globally stable and the disease dies out. If R 0 > 1, a unique endemic equilibrium is globally stable in the interior of the feasible region and the disease persists at the endemic equilibrium. Numerical simulations are presented to illustrate the results.