The Institut Pasteur explainer describes the ongoing H5N1 avian influenza epizootic since 2022, including its spread to dairy cattle. It notes more than 300 poultry farm outbreaks in Europe in the October–November 2025 season, a higher level than prior years but far below the 2022 peak.
Elevated European poultry outbreaks can tighten egg and poultry supply and add to feed demand uncertainty. The scale is well below 2022, so the price effect is modest.
After 645 past disease events, Lean Hogs moved a median -0.1% over 5 sessions (48% higher; middle half -1.8% to +2.1%), and +0.9% over 20.
Not enough comparable past events yet for a historical read.
After 615 past disease events, Soybean Meal moved a median -0.2% over 5 sessions (46% higher; middle half -1.8% to +1.8%), and -0.2% 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.