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

The New World screwworm fly's larvae feed on live flesh, threatening livestock health and causing economic losses. US and ...

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

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 first US/Mexico border fence was erected in 1911 to control cattle and prevent the spread of tick fever from Mexico into the US . Political concerns also contributed to border fences. As Mexico ...

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

Reporting from multiple points along the United States-Mexico border and migrant shelters in Tijuana, Mexico.

A Border Patrol agent walks past four men detained after crossing the border illegally in a gap in two walls separating Mexico from the United States before turning themselves in, Thursday, Jan ...