[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/HEALTH/08/03/malaria.origins/art.chimp.gvfi.cnn.jpg caption="Researchers compared malaria DNA from infected chimps in Cameroon and Ivory Coast with human malaria."]
CNN Medical Producer
Nathan Wolfe is a hunter, but he doesn't carry a gun. His prey are invisible to the naked eye.
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.
"If you think about HIV virus as a singular hurricane event, malaria is like the hurricane that's been hitting for thousands of years - constantly," said Wolfe, who heads a research institute called the Global Viral Forecasting Initiative.
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