建立和研究一类具有治疗的急慢性传染病模型.给出了模型存在无病平衡点、唯一地方病平衡点、两个地方病平衡点(即后向分支)的相应条件.并在一定条件下证明了无病平衡点和唯一地方病平衡点的稳定性.
A class of acute and chronic epidemic model with treatment is formulated and studied. The conditions under which the model exists disease free euqilibrium, unique endemic equilibrium, two endemic equilibrium( the backward bifurcation) are given The stabilities of the disease free equilibrium and the unique endemic equilibrium are proved under certain conditons.