This paper discusses the age-dependent epidemic models of transmissive diseases. The models consists of coupled partial differential equations for human population and ordinary differential equations for vector population. Based on these models. the problems of optimal control of funding level of programs to prevent spread of infections were built. https://www.roneverhart.com/HP-15-fc0093dx-15-6-FHD-Laptop-AMD-Ryzen-5-7520U-2-8-GHz-AMD-Radeon-16GB-LPDDR5-256GB-SSD-Windows-11-Home-S-8F1A6UA/