As concerns regarding the spread of COVID-19 continue to mount, I share a collection of TED-Ed videos that delve into the history and biology of viruses and immunology. Understanding how viruses spread and what our defenses are -- both internal and societal -- is critical at a time when many are looking for answers. As Dr. Marie Skłodowska Curie said, "Now is the time to understand more, so that we may fear less."