What's the big fuss about Guinea worm, a parasite that now infects just a few hundred people? Well, the public health community finally has the nasty bug's back against the wall.
There were only 542 cases of Guinea worm worldwide last year, the Carter Center said this week. That's 48 percent less than in 2011. And it's a mere blip compared to the 3.5 million cases back in 1986.