In this episode, we speak with Dr. Antonio Frontera, a cardiac electrophysiologist at the San Raffaele Hospital in Milan (at the epicenter of the Coronavirus outbreak in Italy). He talks about the topics in his article, Severe Air Pollution Links to Higher Mortality in COVID-19 Patients: the ‘Double-Hit’ Hypothesis, which  is a compilation of his research on the correlation between cities with higher air pollution and COVID-19 outbreaks.