Screwworm parasites primarily infect livestock, but human cases have risen in Central America after the pests escaped ...

In response to the continued expansion of screwworm flies into southern Mexico, the U.S. suspended live animal imports from Mexico on May 11, 2025, halting imports of feeder cattle from Mexico.

ANALYSIS: After decades of eradication – the New World screwworm has once again spread through several countries in Central ...

The flesh-eating The flesh-eating New World screwworm fly is spreading north through Central America toward the US after decades of eradication. Learn why it's returning and what's being done to stop ...

USDA suspended the import of live cattle, bison and horses through U.S. ports of entry along the southern border as of May 11 ...

It’s no longer a question of whether we’ll see a return of New World screwworm in the U.S.—but a matter of when. That’s according to Colin Woodall, CEO of the National Cattlemen’s Beef Association (NC ...

Colin Woodall, CEO of the National Cattlemen’s Beef Association, says the screwworm, a parasitic pest, is likely to cross the ...

Countless diseases and life-threatening pests have been eradicated worldwide. When what was once eradicated makes a comeback, though, there is cause for concern both for social and economic reasons. A ...

Parasitic larvae from flies known as New World screwworm are infesting cattle in Mexico, and officials are racing to slow ...

In this opinion piece, GOP Reps. Frank Lucas and Tony Gonzales argue that establishment of a new sterile fly production ...