"Coronavirus reached pandemic proportions. COVID-19 and its viral relatives— generated fear, sickness, and death, affecting the lives of millions worldwide. In this virus we have experienced the fear of the unknown—it’s course; and fear of the known—its consequences. Coronaviruses have been around for centuries. They can affect man, animals, and birds. But what makes COVID-19 different? According to Frank Esper, MD, pediatric infectious disease specialist at Cleveland Clinic, these newer strains are “true emerging infectious diseases” that “have undergone recent animal-to-human transition,” making them hard to control. It’s an old virus with a new footprint—a big one, and good hygiene and strong immune defenses are key to resisting and beating this new viral bully."