US races to contain flesh-eating parasite screwworm, reports no further cases

After 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.

• Jun 3, 2026Flesh-eating screwworm confirmed in Texas calf as parasite crosses border from Mexico | Reuters+0.0%
• Jun 2, 2025How flesh-eating screwworms in cattle could raise US beef prices | Reuters+3.1%
• Jul 10, 2025US again halts cattle imports from Mexico over flesh-eating screwworms | Reuters+2.6%
• Jul 10, 2025US recloses border with Mexico as flesh-eating parasite moves north | AP News+2.6%
• Oct 1, 2025Mexico sees 32% jump in flesh-eating screwworm cases since August as cases move north | Reuters-0.1%

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.

• Jun 3, 2026Flesh-eating screwworm confirmed in Texas calf as parasite crosses border from Mexico | Reuters+1.6%
• Jun 2, 2025How flesh-eating screwworms in cattle could raise US beef prices | Reuters+3.8%
• Jul 10, 2025US again halts cattle imports from Mexico over flesh-eating screwworms | Reuters+1.6%
• Jul 10, 2025US recloses border with Mexico as flesh-eating parasite moves north | AP News+1.6%
• Oct 1, 2025Mexico sees 32% jump in flesh-eating screwworm cases since August as cases move north | Reuters+1.2%