US Halts Cattle Imports From Mexico Over Flesh-Eating Fly (1)

The US is suspending imports of live cattle, horses, and bison via ports along the southern border because of the spread of a parasitic fly in Mexico that’s dangerous to livestock.

The suspension is effective immediately, US Agriculture Secretary Brooke Rollins said on Sunday. “There has been unacceptable northward advancement” of the New World screwworm, which is a flesh-eating fly, and further action is needed to slow its spread, according to a US Department of Agriculture statement.

Safeguarding the nation’s livestock is “a national security issue of the utmost importance,” Rollins said, adding that the measure “is not about ...