The reemergence of the New World screwworm, which poses significant health risks for livestock, has prompted the Department ...

Bugs found in 29 states, primarily Florida and Texas, may be invading homes and spreading a deadly parasite responsible for a dangerous, little-known disease.

The U.S. has closed its southern border again to livestock imports, saying that a flesh-eating parasite has moved further ...

Parasitic, egg-eating worms might sound like the stuff of nightmares, but they're simply a fact of life for blue crabs in the ...