Thank you! Honestly this was a surprise as i though uoft was a reach for me (still waiting for an email to tell me it was a mistake lol).
Hon BSc. Honours thesis (manuscript in preparation), volunteer research assistant, some public health volunteering, unrelated office-type work experience/internships every summer of undergrad. My LOI was very specific in terms of research interests and the specific area of epi I'm interested in.
Best of luck!