Overuse of deworming drugs led to widespread resistance among parasites
Friday, July 20, 2012 - 10:10
in Biology & Nature
(Phys.org) -- A long forgotten foe is beginning to reemerge on pastures and meadows around the world, and farmers are finding that they have no way to combat it. Parasitic worms infecting cows, sheep, goats and horses are becoming resistant to the drugs used to kill them, and if changes are not made in how the few remaining drugs that still work are used, there may be no way left to fight the growing threat, according to Ray Kaplan, a University of Georgia professor in the department of infectious diseases.