Centers for Disease Control and Prevention."Answering 20 Questions about COVID-19". Apr 14, 2020. https://youtu.be/V9p10jSLd9s
Image: Centers for Disease Control and Prevention. "Coronavirus Disease 2019 Stop the Spread of Germs" Coronavirus Disease 2019 (COVID-19), https://www.cdc.gov/coronavirus/2019-ncov/downloads/stop-the-spread-of-germs.pdf