USDA confirmed H5N1 in three dairy herds in Washington on November 5 and in a commercial table-egg pullet flock in Pierce County on November 4, affecting 47,000 birds. The agency also reported 23 wild birds testing positive across Yakima and Grant counties.
The affected pullet flock may constrain future egg-layer supply, while detections in dairy herds add disease-related risk to livestock operations; broader spread could increase poultry and egg prices.
Not enough comparable past events yet for a historical read.
After 22 past bullish disease events, Milk (Class III) moved a median -0.0% over 5 sessions (45% higher; middle half -0.9% to +0.5%), and -2.8% 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.