We speak with Laura Spinney, science journalist and author of “Pale Rider: The Spanish Flu of 1918 and How It Changed the World” and discuss the dreadful disease that claimed 50-100 million lives, more than the Great War that preceded it. The so-called ‘Spanish Flu’ caused global damage but also caused scientists to reflect and develop better science and public health strategies. And it forced new measures implemented by governments. But how much have we learned those lessons? We discuss these topics.