The world is tantalizingly close to the end of Guinea worm disease, with just 2 confirmed cases left—a far cry from the 3 million cases a year a few decades ago. Both of the cases of the illness caused by the parasite—dubbed “fiery serpent”—are in Chad. There also 2…

The path to eradication and elimination is never smooth. Take guinea worm. The International Commission for the Certification of Dracunculiasis Eradication was established to oversee that the eradication process meets WHO's legal obligations. This entails a review of the…