I like to work one on one with Epidemiologist and learned so many things practically which we had only learned in books.
What I wish was different
I wish I had open to more options and learned little bit of everything such as community development work and many others.
Advice
I would Advice that you have to ASK for experiences that you specifically are looking for and be open to other options at the same time so, you get to learn many things at a time and not just one specific area of interest.