This paper studies infectious disease model with Vaccination and isolation.The threshold which determines the spread of the disease is found.The judgement conditions of the disease-free equilibrium point and the endemic equilibrium point is given.Using LaSalle Invariant theory
the global asymptotical stability of the disease-free point is proved.Using Hurwitz criterion
the sufficient condition for the local stability of the endemic equilibrium point is obtained.The application of the method of f...