The Swine Health Information Center's December report says African swine fever spread into six new Chinese provinces in November, and a second classical swine fever case was reported in Japan. Domestically, PRRSV positivity rose in adult and unknown categories, and Streptococcus suis remains the main agent behind CNS cases.
Continued ASF expansion in China reduces hog inventories and raises import demand for protein and feed, supporting prices for corn, soymeal and other feed ingredients while pressuring hog margins.
After 117 past bearish disease events, Lean Hogs moved a median -0.6% over 5 sessions (36% higher; middle half -2.2% to +1.6%), and +1.2% over 20.
After 67 past bullish disease events, Soybean Meal moved a median -0.2% over 5 sessions (46% higher; middle half -1.7% to +1.9%), and +0.4% over 20.
After 56 past bullish disease events, Corn moved a median -0.1% over 5 sessions (48% higher; middle half -1.5% to +1.6%), and +0.8% 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.