Public Health Scene

State health officials report that the flu is now widespread in Minnesota. While not all of the cases are the swine flu, or H1N1, officials believe it's playing a big role in the upsurge.

So, what are the symptoms? We asked John Finnegan, dean of the University of Minnesota School of Public Health.

He provides background on H1N1, explains the symptoms, who is most at risk and explains when someone should seek medical care.

Listen to Finnegan on Public Health Scene (4:58)