A new case of New World Screwworm (NWS) was reported in Veracruz, Mexico, just 370 miles from the U.S. border. The case was confirmed by SENASICA, Mexico’s agricultural agency, and lies north of ...

Understanding the New World screwworm blowfly and its behavior underscores why it is so dangerous to the livestock industry.

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

The USDA hopes a new fly factory will be operating in southern Mexico by July 2026 to supplement fly breeding at an existing ...

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

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

The U.S. government is combating a potential invasion of flesh-eating New World screwworm maggots with a multimillion-dollar ...

U.S. border closure for Mexican cattle after new screwworm case in Veracruz, frustrating reopening and raising tensions.

Another pause in US imports of Mexican cattle over screwworm, job losses and tomato tariffs were topics of Sheinbaum's ...