Based on this new research, if just one infected cow entered the U.S. feed supply and the brain and spinal cord of that animal were maximally dispersed in feed, it could potentially infect 45,000 other cows. That's why we have to be extremely vigilant about keeping any infected animal material out of feed and food.  -   Michael Hansen     Quotes
Based on this new research, if just one infected cow entered the U.S. feed supply and the brain and spinal cord of that animal were maximally dispersed in feed, it could potentially infect 45,000 other cows. That's why we have to be extremely vigilant about keeping any infected animal material out of feed and food. Michael Hansen
 Research