FALCON HEIGHTS — The Minnesota Department of Health says three people developed swine flu symptoms after exhibiting pigs or spending time at the Minnesota State Fair’s swine barn.

One of the three cases has been confirmed by the Centers for Disease Control as of Friday and test results are pending on the other two.

The strain is a variation called H1N2. State deputy epidemiologist Richard Danilla said the Minnesota Department of Health had posted warnings around the swine barn in response to another strain — the H3N2 variation that’s linked to illnesses in 300 people nationwide.

“The measures we were taking to protect against H3N2 would’ve protected them against H1N2 as well,” Danilla said. “We have a sign up outside the swine barn and it says, ‘If you have any of these high risk conditions to stay out of the barn.’ They really shouldn’t have been in the barn, yet they were, all day.”

The confirmed case was in a teenage girl exhibiting pigs at the fair. The two other cases are in an elementary school-aged boy who spent all day in the swine barn, and a woman in her 70s who spent a prolonged period of time in the swine barn and at a swine show.