The Lazaretto: America's last surviving quarantine hospital "hiding in plain sight for decades."

The Lazaretto is a beautiful, stately building in Tinicum Township, Delaware County, Pennsylvania. It's also the last surviving quarantine hospital in the United States. It has an incredible history, and it's been hiding in plain sight for decades. David Barnes, Associate Professor of History and Sociology of Science at the University of Pennsylvania joins KYW Newsradio in Depth to talk about the history of the Lazaretto and its role in keeping infectious disease from entering Philadelphia and the United States.Check out the Lazaretto online at http://lazaretto.site/