USDA Secretary Announces Agreement with Mexico on Beef Parasite

May 05, 2025

Secretary of Agriculture Brooke Rollins announced Monday that Mexico had come to an agreement with the U.S. for handling the New World screwworm. Over the weekend, the USDA secretary threatened to halt beef imports from Mexico if the country did not take more steps to respond to the spread of the New World Screwworm. This screwworm is a deadly parasite that spreads by burrowing into the living flesh of an animal. This parasite has spread to humans in rare cases.

In her letter to her Mexican counterpart, Secretary Rollins wrote, “If these issues are not resolved by Wednesday, April 30, USDA will restrict the importation of animal commodities, which consist of live cattle, bison, and equine originating from or transiting Mexico to protect the interest of the agriculture industry in the United States.”

“Every delay in granting full operational authority and eliminating customs barriers undermines our collective ability to carry out this emergency response,” the USDA secretary added.

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Video: How Data Predicts Swine Outbreaks - Swaminathan Jayaraman

In this episode of The Swine it Podcast Show Canada, Swaminathan Jayaraman, Research Assistant and PhD Candidate at Iowa State University College of Veterinary Medicine, explains how integrated data systems can improve disease surveillance in swine production. He discusses combining diagnostics, animal movement data, production records, and spatial analytics to identify risks earlier and support proactive decision-making for PRRS, PED, and swine influenza. Listen now on all major platforms!

"Disease surveillance remains largely reactive because outbreaks are often confirmed only after transmission has already occurred across multiple connected production sites."

Meet the guest: Swaminathan Jayaraman / swamjay is a Graduate Research Assistant at Iowa State University College of Veterinary Medicine. With academic training in management information systems and engineering, he focuses on integrating diagnostic, production, and movement data to improve disease surveillance and decision support in swine production systems. Listen to Swaminathan Jayaraman on The Swine it Podcast Show Canada, available on all major platforms.