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New World screwworm cases in the U.S. rose to 71, with 18 active, after a first case was confirmed in Arizona in a dog on Oct. 28.
USDA has continued the phased reopening of Mexico-U.S. ports for cattle, with the Douglas, Arizona port opening Aug. 24, 2026.
Reopened border ports add Mexican feeder cattle supply, which is bearish for feeder cattle prices. Spreading screwworm cases raise the risk of new movement restrictions, which could reverse that pressure.
dtnpf.comJennifer CarricoNov 2, 2026After 46 past bearish disease events, Feeder Cattle moved a median +0.3% over 5 sessions (54% higher; middle half -2.3% to +1.6%), and +1.8% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.
