
State agriculture departments and state veterinarians have asked USDA to approve a voluntary pilot vaccination program for dairy cattle. They say testing and interstate movement restrictions alone are insufficient as bird flu has infected 1,230 dairy herds in 22 states since March 2024; no vaccine is currently licensed.
Vaccination could help limit disease spread and reduce risks to dairy production, although approval and effectiveness at scale remain uncertain. The immediate feed-market impact is limited, with possible longer-term effects on milk and cattle supply if outbreaks continue or are controlled.
After 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.
After 69 past neutral disease events, Live Cattle moved a median -0.1% over 5 sessions (42% higher; middle half -0.8% to +0.6%), and +0.9% 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.