Frequently Asked Questions about COVID-19
COVID-19 is a contagious disease caused by the SARS-CoV-2 virus. Most people with COVID-19 have mild symptoms, but some may become severely ill.
Vaccination
Updated July 2025
Sources: American Academy of Pediatrics, Centers for Disease Control and Prevention, Food and Drug Administration
Related Resources
COVID-19 Communications: Promoting Prevention Measures and Vaccine Confidence
Report offering a scalable approach with strategies and messaging for COVID-19 education and outreach efforts (March 2021)
The Dangers of Influenza and COVID-19 in Adults with Chronic Health Conditions
Call to Action on the importance of protecting adults with chronic health conditions against flu during the COVID-19 pandemic (October 2020)