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The Oregon Department of Agriculture confirmed highly pathogenic avian influenza in a commercial dairy herd in Morrow County, the state's first dairy detection. The farm has been quarantined while officials investigate how the cows were infected, and no other affected dairies had been identified as of Thursday.
A single dairy detection with no other affected herds so far is a limited supply risk, but spread among dairy cattle could reduce milk output and raise concern over dairy exports. Milk is pasteurized and diverted from the food supply, so the direct price effect is modest.
opb.orgAlejandro FigueroaNov 12, 2026After 22 past neutral disease events, Milk (Class III) moved a median -0.1% over 5 sessions (41% higher; middle half -1.4% to +0.5%), 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.
