n this talk, we will discuss some models related to disease control. These models include the optimization of vaccination and testing strategies, as well as systems for biological control of insects and pests. We will demonstrate how optimal control theory and other associated tools aid in analyzing the systems and provide answers to practical questions. https://www.oden.utexas.edu/news-and-events/events/1922---Dr.%20Maria%20Soledad%20Aronna/