This topical series uses a then-and-now approach to explore how the influenza pandemic of 1918 and the COVID-19 pandemic of 2020 have shaped our culture, crisis response, medical advancements, and more. Readers learn key facts about the pandemics, such as how the novel viruses spread and how health-care professionals responded to the emergencies. Aligned to Common Core Standards and correlated to state standards. Abdo & Daughters is an imprint of Abdo Publishing, a division of ABDO.