Mexican screwworm outbreak forces cattle market shifts as illegal smuggling from Central America continues to spread disease ...

MEXICO CITY (AP) — Mexico activated emergency controls Monday after detecting a new case of New World screwworm in cattle in the northern border state of Nuevo Leon state, the closest case to the U.S.

A case of New World screwworm was detected in livestock in the Mexican state of Tamaulipas, which borders the southern tip of ...