The fly larvae, which can burrow into living flesh, pose a severe threat to livestock, wildlife, pets, and in rare cases, ...

The detection in a six-day-old calf marks the first appearance of the parasite in the Mexican state of Tamaulipas.

Mexican authorities reported a case of the New World screwworm parasite late on Thursday, the second case reported in two ...

The United States kept its border with Mexico closed to cattle for much of 2025 to protect its herds from the New World ...

Mexico is grappling with a significant outbreak of the screwworm parasite, impacting livestock and leading to the closure of ...

UCCE experts urge producers to monitor their animals for signs of the parasite, which has been moving north from Central and South America.

California researchers are preparing for the possible return of the New World screwworm, a parasitic fly that feeds on living flesh and once devastated U.S. livestock. By monitoring traps and ...

State and federal officials are gearing up to stop the advance of a parasitic fly that is less than 70 miles from the United ...

A second case of the New World screwworm was detected in a goat in Mexico's central state, following an earlier case in a cow ...

A dangerous parasite once eliminated in the United States has been detected in northern Mexico, close to the U.S. border. Mexico's agriculture ministry confirmed Sunday that an 8-month-old cow in ...

The New World screwworm is a flesh-eating parasite that lays eggs in open wounds. It can be devastating to livestock and, in rare cases, humans. (U.S. Centers for Disease Control and Prevention/TNS) ...