The Maine Center for Disease Control and Prevention says the number of swine flu cases in Maine has risen to 12.They are also reporting the first swine flu related hospitalization.Dr. Dora Anne Mills said Thursday that state testing confirmed two more cases. The latest include students at Bridgton Academy and Lunt elementary school in Falmouth. Mills did not announce any plans to close either school.John Martins of the Department of Health and Human Services says the hospitalization involved a person with underlying health conditions.Mills says common sense should rule. Current guidelines call for those with swine flu to stay home seven days from onset of symptoms or until 24 hours after symptoms end.