For malaria in Africa the 2 most common are Malarone or Doxycycline. I don't like Malarone at all as it gives me nausea, mouth ulcers, indigestion and seems to affect my vision. Doxy makes you more susceptible to sunburn, but seems to have fewer unpleasant effects.
Be aware that polio is making a comeback in some countries in Africa, so check if your nurse thinks you should have another dose of salk vaccine.
Meningitis is also a danger in some parts of Africa, but usually that's a bit later in the year.