Should the flies reach the states, the larvae could infest livestock, pets, wildlife and, possibly, even people.

New cases of screwworms on July 8 in Veracruz, Mexico has caused the U.S. to close southern borders to livestock imports.

The U.S. has again ceased livestock imports from Mexico related to the presence of the parasitic New World screwworm fly closer to the border.

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

With tail wagging, tongue out and ears perked, Hummer - a young mixed breed dog with a slick black coat - sits down in front of a sample of screwworm scent, promptly accepting praise and treats from ...

The U.S. Department of Agriculture works to neutralize -- again -- the flesh-eating larva of the New World Screwworm fly.

The U.S. has shut its southern border to livestock imports again after a flesh-eating parasite was found further north in ...

Southern Border Livestock Ports Closed After New World Screwworm Case Detected originally appeared on Paulick Report.

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

America set to open Texas ‘fly factory’ in bid to breed millions of insects The plan is to breed millions of the insects near the border with Mexico ...