Politics· States Newsroom

Much of southern New Mexico a designated screwworm ‘infested zone’ as USDA reopens cattle imports

States Newsroom · October 22, 2026

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Three confirmed New World screwworm cases in recent weeks in New Mexico have left swathes of the state’s southern border under a state-designated “infested zone,” which demarcates where ranchers must receive state Livestock Board authorization before moving their cattle. The zones span much of southern New Mexico…

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