<p>I considered an MD/PhD (or MSTP) program when I was still interested in microbiology/virology. The program heavily emphasizes research, so undergrad research in the field is probably a pre-req no matter what. </p>
<p>The MD/PhD programs (many of which are conveniently paid for by fellowships, btw) require you to meet both the med school and grad school’s admissions requirements (which can be extensive), so I’m willing to bet an undergrad degree in a related field is desirable. That said, there’s no reason he can’t have multiple majors or minors.</p>
<p>Just a plug for Duke- Duke is heavily emphasizing global health, and its certificate program in Global Health is in the process of being approved, as well as already having a Health Policy certificate program. Emory would be another good choice.</p>