Curious Incident of the Guinea Worm in the Dog

Humans have waged a decade-spanning war of extinction against the parasitic Guinea worm. With cases down roughly 99.99 percent from 1986, it would seem the struggle is nearly at an end. Now our inhuman adversary has found a new place to hide -- and that place is man's best friend.

Curious Incident of the Guinea Worm in the Dog

Image Caption: As water supplies diminish in the drought, more and more use is made of less and less water, leading to the likelihood of guinea worm parasites spreading. Here women wash tent poles in one of the few remaining ponds. (Karen Kasmauski/Getty)

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Topics in this Podcast: disease, health, parasites