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WASHINGTON � U.S. Agriculture Secretary Brooke Rollins on Sunday said she is suspending imports of live cattle, horses and bison through the southern U.S. border over the damaging pest New World screwworm, a measure that immediately drew opposition from Mexico.

"I am announcing the suspension of live cattle, horse, & bison imports through U.S. southern border ports of entry effective immediately," Rollins said. "The last time this devastating pest invaded America, it took 30 years for our cattle industry to recover. This cannot happen again."