Greetings!
It can be a challenge to try to merge other types of papers into a research paper! The first thing is to make sure you know where you're going with it--otherwise, you'll quickly become lost along the way. Try thinking of it like this and see if it helps. You are researching poverty in Africa. First, you must define what "poverty" is (your "Definition" paper will help!); second, you will discuss the causes of poverty, and what effects they have on the people there (Cause and Effect essay); then, you may want to add some research which shows what some of the things are which are being done to help (there are more and more projects being started, from what I've seen on television), some possible solutions, and/or what will happen if something drastic is not done soon. You can focus mainly on the health aspects, or include a discussion of the political consequences (unrest, civil war, coup d'etat, etc.) of too many desperate people struggling to stay alive.
I hope this helps. If you need more assistance, let me know; I may need more specific information about what it is exactly you are "stuck with"!
Thanks,
Sarah, EssayForum.com
Sarah, EssayForum.com