
USDA notified the World Organisation for Animal Health that the virus found in dairy cows is H5N1 from clade 2.3.4.4b, descended from the B3.2 genotype first seen in wild birds in November 2023. Investigators are still determining whether H5N1 was the only cause of an unexplained illness in affected herds in Texas and other locations.
Confirmed spread through dairy herds raises biosecurity costs and adds uncertainty to milk output. Any herd losses would support milk prices.
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.