Propaganda.
Note that the issues the US had in the fall with Avian influenza are compounded not by local farmers, but by massive corporate factory farms that optimize output at the expense of everything else.
Canada functionally escaped the issue because the farms here are smaller and more family-based, and so with healthier birds and cows in smaller localized populations made it much easier to maintain.
Yup, never got to fly on it, but got to see it land and take off a few times. Was beautiful.