By all accounts, it's been a tough flu season, and there are no signs it's letting up. But just what is the flu? How do you know that it's not just a cold or cough? WGBH's All Things Considered host Barbara Howard spoke with Dr. Larry Madoff of the Massachusetts Department of Public Health about this flu season and whether it's more dangerous than in years past.
During the flu season, the Massachusetts Department of Public Health releases weekly data on the number of new influenza cases by region. To read the latest data, click here.