Researchers say they found malaria's origin: In chimps

Nathan Wolfe is a hunter, but he doesn't carry a gun. His prey are invisible to the naked eye.

Researchers compared malaria DNA from infected chimps in Cameroon and Ivory Coast with human malaria.
Wolfe leads expeditions into the mysterious world of viruses and pathogens.

"They are everywhere," said Wolfe, a microbiologist who speaks of his targets -- infectious organisms -- with the giddy lilt of a teenager on a first date. "We have the potential to explore a completely new biological world and go out and really find new things all the time."

One bug has been Wolfe's singular obsession for more than a decade, arguably the biggest menace to humans: malaria.
http://www.cnn.com/2009/HEALTH/08/03/malaria.origins/index.html?eref=rss_topstories