Brazil confirmed its first Newcastle disease outbreak in over two years on October 18 at a turkey farm in Santa Catarina. Mexico suspended all Brazilian poultry imports on October 19, while Saudi Arabia, China, Malaysia and Chile imposed restrictions of varying scope.
Brazil is one of the world's leading chicken exporters, so losing key markets such as Mexico and China shifts supply to other exporters and pressures Brazilian chicken prices, while adding to feed demand uncertainty.
Not enough comparable past events yet for a historical read.
After 145 past neutral disease events, Corn moved a median +0.4% over 5 sessions (58% higher; middle half -1.2% to +1.7%), and +0.0% over 20.
After 98 past neutral disease events, Soybean Meal moved a median -0.2% over 5 sessions (44% higher; middle half -1.9% to +1.5%), and -0.4% 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.