@Teochew I learned how to sell ice to the Eskimo and I was set. I have no experience in public health, I can take just about everything I've done in past few years and pitch it to them as if these are skills that transferable. Talk to a career counsellor about creating a cv that highlights this and you'll the idea will become very apparent if its not already. e.g. I land sponsorship for a charity event through awesome proposals, speaking in front of large audiences, and great applications. These skills could easily be applied to a public health research context for grant applications or addressing audiences.
Research experience - volunteering and paid
4th year thesis
volunteer manager for yearly community charity event and other volunteer stuff in community
awesome references that you work closely with and maybe did more than just take a class or two with them
See career counselors and they'll have shape up your cv and letter of intent