COVID-19 has taken the entire world by storm. Many of the smartest people on Earth have been working to find treatments, a vaccine, and ultimately, a cure. So what exactly is COVID-19? What is a "coronavirus"? Where did the disease come from? How do you know if you have it? How is it treated? How do you stop yourself from getting it or passing it on to others? Learn all about the answers to these questions, and one more question on everyone's mind: When and how will the world go back to normal?