Assuming viruses are real in a thought experiment:
There are but two ways anything like this “bird flu” can spread. One is some natural way via bird to bird transmission by some visiting bird to a farm, then flying to another farm to spread it. Its not likely and really nothing can be done except allow any birds to die and keep the ones that don’t (they will have immunity going forward).
The second way is for farm hands to work between different facilities, spreading it to the places they work. Obviously, stopping workers from going to multiple farms would stop transmission in its place.
Factory farms are death mills in their treatment of animals. This chicken farmer tells off on the real problem.
