And...the University of London MSc in Infectious Diseases from the prestigious School of Hygiene and Tropical Medicine would be one great ticket!!
And if only you could prescribe even a single antibiotic it would even be useful too.
Having studied several units in Tropical Medicine at postgraduate level it was all very interesting but kind of pointless since we almost never see these things as podiatrists.
Sorry to sound cynical, but there's lots of other interesting higher degrees out there that might be more useful in day to day practice...