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Ranchers in Texas's Rio Grande Valley are on alert after a New World screwworm case was confirmed near Uvalde, though there are no confirmed cases in the Valley itself. Local veterinarians and ranch families are urging daily checks of cattle and pets for wounds that could attract the parasite.
Screwworm infestations injure and devalue cattle and can trigger movement restrictions and herd losses, tightening US cattle supply and supporting feeder and live cattle prices.
krgv.comSantiago CaicedoNov 12, 2026After 148 past bullish disease events, Live Cattle moved a median +0.4% over 5 sessions (62% higher; middle half -0.5% to +1.2%), and +1.4% over 20.
After 122 past bullish disease events, Feeder Cattle moved a median +0.4% over 5 sessions (60% higher; middle half -1.0% to +1.6%), and +2.0% 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.
