
Infected dairy herds in Washington State rose from nine to 34 in one week, with most cases in Yakima and Benton counties. Washington is the 20th state to report bird flu in dairy herds since the outbreak began in 2024.
Other new cases in the past month were limited to single herds in Texas and Kansas.
Fast spread through a major dairy region can reduce milk output and raise culling, which supports milk prices in the Pacific Northwest. Washington is a significant milk producer, so the outbreak can tighten regional supply.
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.