The Surgery in Kampala is a reliable travel clinic.They even have Malarone. Two of the physicians are certified in Tropical Medicine by the Liverpool School of Tropical Medicine, and the Surgery is on the US Embassy list of suggested medical practitioners.
Their web site is being reconstructed, so the only thing you'll get there is contact info.
While I was composing this post, a test version of their new web site suddenly came up. So you may or may not get it. I got this from the test site:
> We stock a full range of travel vaccinations including: Rabies, Yellow Fever, Hep A, Hep B, Meningitis, Typhoid, Cholera, Tetanus, Polio, Diphtheria.