When it comes to illnesses, outbreaks like Ebola, Zika and now the measles are quick to make headlines. But despite killing tens of thousands of Americans every year, C. diff often fails to gain widespread attention. Brooklyn resident Christian Lillis is working to change that.

After his mother died from complications from a C. diff bug, Lillis founded an organization to educate the public and shape policy surrounding health care-associated infections. It’s called the Peggy Lillis Foundation. Christian is our guest on this week’s Cityscape.