Implications for North American Cold Chain Operators in the Beef and Dairy Sectors
June 4, 2026
Cold chain operators across North America that serve the beef and dairy sectors are impacted by the emergence and northward spread of New World Screwworm (NWS). Its confirmed arrival on U.S. soil this week has short, medium, and long-term implications for protein cold chains — from primary production through processing, warehousing, and distribution.
The core message is this: NWS is not a food safety issue, but it is a significant and worsening food production issue. Any meaningful reduction in U.S. or Mexican cattle supply — against a backdrop of already historically low U.S. herd sizes — will tighten throughput at processing facilities, reduce warehouse utilization on beef lines, and sustain elevated beef prices for an extended period. Dairy supply chains face secondary but real exposure through shared livestock populations and veterinary resource constraints. Cold chain operators should be scenario-planning now.