Dr. Nicholas Christakis, Yale coronavirus expert

Dr. Nicholas Christakis of Yale University has emerged as one of the nation's leading experts on coronavirus. He joins Will Ahmed to discuss how the virus started, why it's spreading so quickly, and what we can do to limit the number of cases moving forward. Nicholas and Will discuss how China used a "social nuclear weapon" to address the outbreak (6:38), what experts believe may have started the pandemic (11:33), how many cases one case can reproduce (12:18), mortality rates compared to othe...