Ms. Kalkowska focuses her research on system dynamics, stochastic modeling, and optimization to help inform global public health policies. As an undergraduate, she studied Mathematics in Finance and Insurance at the University of Zielona Gora in Poland. She began working with Kid Risk on polio while pursuing her Master's degree in Mathematics with specialization in Risk and Environmental Modeling at Delft University of Technology in The Netherlands. Her Masterís thesis focused on modeling the potential of undetected circulation of wild polioviruses. As a TU Delft doctoral student, she continues to work as a visiting scholar at Kid Risk. In addition to further exploring the management of undetected circulation of wild polioviruses with a focus on high-risk areas and the implications for surveillance, her doctoral work focuses on developing a model that will help countries identify optimal vaccination strategies as they manage their population immunity with respect to polioviruses.