発生から数年後、米国がニュー・ワールド・スクリューワームの脅威にさらされた経緯

過去の強気な疾病イベント122件の後、フィーダー牛 は5営業日で中央値 +0.4% 動き（60% が上昇。中央50%は -1.0% から +1.6%）、20営業日では +2.0% 動きました。

• 2026/07/19What the U.S. can learn from Mexico's handling of the screwworm outbreak - VPM-0.2%
• 2024/11/29Mexico’s Screwworm Outbreak Delays Mexican Cattle Exports Into the US Until After the First of the Year - Oklahoma Farm Report-1.5%
• 2025/06/02How flesh-eating screwworms in cattle could raise US beef prices | Reuters+3.8%
• 2025/08/15USDA to build Texas facility to fight flesh-eating screwworms | Reuters+4.7%
• 2017/01/15Flesh-Eating Screwworms Reach Florida's Mainland - The Atlantic+1.8%

過去の強気な疾病イベント148件の後、生牛 は5営業日で中央値 +0.4% 動き（62% が上昇。中央50%は -0.5% から +1.2%）、20営業日では +1.4% 動きました。

• 2026/07/19What the U.S. can learn from Mexico's handling of the screwworm outbreak - VPM-1.4%
• 2025/06/02How flesh-eating screwworms in cattle could raise US beef prices | Reuters+3.1%
• 2025/08/15USDA to build Texas facility to fight flesh-eating screwworms | Reuters+1.1%
• 2017/01/15Flesh-Eating Screwworms Reach Florida's Mainland - The Atlantic+1.2%
• 2026/06/05US races to contain flesh-eating parasite screwworm, reports no further cases+0.4%