The wriggling parasites are a scourge around the world. And in some ways, other countries are better at fighting them than the U.S. But a new effort in the rural South shows promise.
(Image credit: Agency-Animal-Picture/Getty Images)
The wriggling parasites are a scourge around the world. And in some ways, other countries are better at fighting them than the U.S. But a new effort in the rural South shows promise.