Mexico’s government instituted new regulations on livestock movement because of the New World screwworm infestation in the country. Restrictions were put in place as tensions with the United States continue to heat up. Mexico’s meat chamber AMEG (Mexican Cattle Feeders Association) said restricting the movement of livestock from the south to the northern part of the country “threatens the economic viability of the sector that generated $192 billion in 2024.” Reuters said a document dated September 19 from Mexico’s ag ministry said the anti-parasite drug Ivermectin must be given 72 hours in advance of the movement of cattle under the supervision of staff from the International Regional Organization for Animal and Plant Health. “Recent measures jeopardize the supply chain of the meat production sector,” said AMEG, without specifying which measures they were referring to in the statement. AMEG said the only proven method to eradicate the screwworm was the release of sterile flies.