Some state fairs are taking precautions against bird flu by using fiberglass cows.

This year, some places are replacing real cows with fake ones at state fairs.

This year, nearly 200 cattle herds have been infected with avian flu, prompting fair organizers in certain states to think outside the box.

"Typically, we'd have a cow out there," Jill Nathe, the Minnesota State Fair's deputy general manager of agriculture and competition said to Reuters. "However, we can't do that now."

The Moo Booth at the fair will showcase Olympia, a cow substitute, during their milking demonstration.

Pregnant cows are not permitted in the fair's birthing center, but workers handling livestock are given gloves and masks.

At the Michigan State Fair, fiberglass cows named Milkshake and Buttercup will replace real bovine in the milking demonstration, featuring rubber teats and udders filled with water.

Some experts worry that the number of farmworkers infected with avian flu may be under-reported, as thirteen workers have already been infected and have since recovered.

At the Iowa State Fair, hands-on cow attractions have been canceled, and many states are requiring the animals to test negative before being allowed in.

Jennifer and Bethany Droessler, from Wisconsin, decided to keep a lactating cow at home out of caution, even though they brought cattle to the fair.

Jennifer Droessler told Reuters that they would strive for the following year and hoped it wouldn't be a problem.

The CDC has stated that the virus poses no significant threat to the general public except in livestock environments.

Be cautious when consuming, imbibing, or interacting with animals at the event, as advised by the CDC.

Reuters contributed to this report.