According to my pediatrician, Selsom Blue slightly left on the skin is a good deterent for a fungal skin condition.

We live on a farm and raise horses, cattle, and hogs. My kids have shown in all the area's of Park City, Kansas Expo Center, and American Royal/Kemper Arena. They have gotten more infections from a human contact(handshake), then livestock. I believe you are unaware of the health regulations that are required to show livestock in some of these venues, these animals go thru blood tests and vet checks just to leave the farm. My oldest is 16 and I honestly can't remember him getting any type of skin infection from the animals. If you think a cow or horse hasn't crapped in the coliseum part you would definately be mistaken, back in the day(80's) it housed several national horse shows. FYI - some of these animals cost more then my kids and are pampered in ways I only wish I was.

Bottom Line-if you don't feel it is safe, don't go.