There have been numerous bird flu scares in the 16 years since I've had chickens. IMO, they are mostly fear-mongering. Your well-managed flock in the U.S. is most likely not going to ever encounter this and people cannot contract it unless they handle dead or live birds that are infected. If you see a dead wild bird, be sure you don't touch it, just burn the body or bury it deeply after sprinkling with hydrated lime, which is always a good practice anyway. My chickens have free ranged among wild birds for the entire time I've had them, through many of the bird flu scares and never contracted a contagious illness. I hope folks don't panic. I even did a video about it on my Youtube channel if you're interested
Stop Panicking Over Bird Flu and Ice Age Farmer also has a good one up. I know from all these years that much of this is being used to begin curtailing the keeping of backyard flocks so just be cautious, take what they say with a grain of salt.
I am in N. Ga at the NC line, by the way.