The Indiana State Department of Health confirmed Tuesday a University of Notre Dame student had been diagnosed with swine flu, the only confirmed case in Indiana.The case was confirmed in northern Indiana from one of two samples from Indiana residents that had been sent to the Centers for Disease Control and Prevention.Indiana Health Commissioner Dr. Judy Monroe said the person who has the virus had not traveled to Mexico, where more than 150 have died from swine flu."We don't know if this person had contact with someone who had traveled to Mexico," Monroe said.The university said the student had sought treatment April 22 at the school's health center and a culture sample was sent to state health officials for analysis. Two days later, the school was notified that the virus may have been swine flu -- a determination the CDC confirmed Monday.Notre Dame said the student has fully recovered and is in good health.Health officials urged people to be careful Tuesday."We ask folks if they do have any symptoms to stay home," Monroe said. "There's no need to be scared, but it is time to be vigilant."Monroe said people should stop shaking hands with each other, should wash hands frequently and should follow other common sense health guidelines."Wash hands, cough in your sleeve, stay home when you're sick," she said. "We do not have a pandemic. What we have is a new virus that has characteristics that could cause a pandemic."Additional samples were sent to the CDC from Indiana. The state's emergency operations center was activated.The state also set up an information hot line at 877-826-0011. The hot line will be staffed from 8 a.m. to 4:45 p.m., Monday through Friday.More than 50 cases of swine flu have been reported in the U.S., but there have been no deaths. Watch 6News and refresh this page for updates.