Walworth County health officials have identified and linked at least a dozen cases of salmonella poisoning to the Walworth County Fair. The minor outbreak was traced back to the swine barn, said Pat Grove, health officer with the Walworth County Health and Human Services Department.

All 12 of the infected people, including one adult and 11 children between ages 4 and 17, have recovered. One victim was hospitalized overnight and since has been released.

Grove doesn’t expect any other cases to be directly linked to the fair because the disease’s incubation has passed.

Anti-bacterial hand-washing stations are set up at many of the animal barn entrances, and signs encourage fairgoers to wash after leaving animal barns. No food is allowed inside animal barns.