Abstract
In this paper, a dynamical system of a SEIQV mathematical model with nonlinear generalized incidence arising in biology is investigated. The stability of the disease-free and endemic equilibrium is discussed. The basic reproduction number of the model is obtained. We found that the disease-free and endemic equilibrium is stable locally as well as globally asymptotically stable. For R-0 < 1, the disease-free equilibrium is stable both locally and globally and for R-0 > 1, the endemic equilibrium is stable globally asymptotically. Finally, some numerical results are presented.