Mary Bushman is an instructor in the Department of Epidemiology at the Harvard T.H. Chan School of Public Health. Mary has a B.A. in Mathematics from Carleton College and a Ph.D. in Population Biology, Ecology and Evolution from Emory University, and worked as a postdoctoral fellow with Rustom Antia at Emory University and then with Bill Hanage in the Center for Communicable Disease Dynamics at HSPH. While at Harvard, Mary pursued an interest in teaching as an HSPH Pedagogy Fellow and subsequently transitioned to an instructor role, in which they teach classes in infectious disease epidemiology in addition to conducting research as a member of Bill Hanage’s group. In their research, they are interested in how within-host dynamics and epidemiological dynamics interact to shape pathogen evolution, with recent work focusing on the role of immune selection on the spread of immune-escape variants of SARS-CoV-2.