They said that you can expect to hear back as early as Feb and as late as March. I'm not sure how this varies across the different disciplines. This interview round was for Epi, Biostats, Bio-Imaging, and Comp Bio / Biomedical informatics.
I have an interview there next week and received a travel itinerary from them, but no information about how the two days of interviews will be structured. Did they send you a schedule for the two interview days?