A "novel" virus is, by definition, unknown and therefore to be feared. By the time we know what it is, it has spread beyond our ability to contain it. The class will look back at Covid-19: how it spread and began killing people all over the world; and what doctors, scientists, government officials, and the public learned and did, or didn't do, to fight back. (We will also consider generating an OLLI journal of personal experiences during the pandemic.)