After decades of work, the finish line was in sight for victory against guinea worm, an excruciatingly painful parasite. That success is now threatened by hundreds of cases among dogs in Chad. Scientists are desperate to stop it in its tracks before it spreads widely to other species.
The Carter Center’s efforts to eradicate guinea worm have seen cases drop from 3.5 million people across 21 countries in 1986, to just 30 in 2 nations last year. Chad is offering cash rewards to people that round up dogs until they are rid of worms, while scientists investigate a new possible culprit: frogs.