It wasn’t that long ago that visitors to Nick Herm­anson’s turkey farm near Story City were welcome to take a look inside of his barns to see his growing turkeys.

But the highly pathogenic avian influenza (HPAI), which hit Iowa earlier this year, changed all of that.

"Opening the door and letting you look in, especially with the possible presence of a deadly disease like AI, that’s a no-no," Hermanson, a Story County Farm Bureau member, said. "That’s not going to happen anymore."

Instead, he visits with students and visitors via Skype. He’s able to show them his turkeys and provide a tour of the farm without risking that the biosecurity of his farm will be compromised.

"We’re limiting access to the farm and sanitizing anything you could possibly think of,"...