Part of the problem may be certain animal contacts, such as eating "bush meat" (mentioned in the article, also discussed in the Laurie Garrett book). Maybe a campaign against those practices could be worthwhile
It's very difficult to convince people to not eat food when the alternative is starving.
Chance of sickness or certainty of starvation.
Stuff like this:
http://magazine.jhsph.edu/2006/Spring/africa/news/virus_hunt...
This one is more focused on conservation:
I expect there is lots more.