WILMINGTON, OH - All of the hogs at an Ohio county fair are set for slaughter and the hog barn will be disinfected.

As Amanda Kelley report, it's all due to swine flu.

Food, games and now a quarantine ban at the Clinton County Fair.

"We got notification late this morning that we had a single case of the H3N2 virus," says Agricultural Society President Scot Gerber.

Fair officials say one of the hogs had a fever, tests came back positive for swine flu.

Now, the hog barn is wrapped up in red tape, only breeders and exhibitors are allowed in.

"I noticed the sheriff all around it and I knew something wasn't right," says fairgoer Larry Satterphwaite.

Now, the nearly 280 hogs, sent here to compete, will instead be sent to slaughter, tonight.

Officials will disinfect the barn to make sure the virus doesn't spread, sending shockwaves through the hog breeding community.

"It's been a hard day, got a lot of kids that have gilts or barrows or whatever that we were going to retain and now they've got to be slaughtered," says hog breeder Joey Johnson. "It's very unfortunate."

"While the Hog Barn remains quarantined and off limits, the rest of the Clinton County fair is in full swing and safe for fairgoers," reporter Amanda Kelley says.

Rides and shows are right on schedule but health officials do warn any fairgoer feeling flu-like symptoms, needs to see a doctor.

"If they have a fever, if they have a sore throat, if they have a dry cough in some way, the quicker the better in order to receive treatment because Tamiflu or an antiviral is effective if it's caught quickly enough," says Clinton County Commissioner Pamela Walker-Bauer.

No human cases have been reported and these precautions will keep people and other animals safe.

"At the end of the day, we have to ensure the end user is getting a healthy product, and we do that," Johnson says. 

The Centers for Disease Control and Prevention reports humans *can* be infected with H3N2.

The infection is most commonly associated with prolonged exposure to pigs at agricultural fairs.