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 October 2025
Sources: American Academy of Pediatrics, American College of Obstetricians and Gynecologists, Infectious Diseases Society of America, Centers for Disease Control and Prevention, Food and Drug Administration
Related Resources
Increasing Influenza (Flu) and COVID-19 Vaccination Rates Among US Black Adults
December 2021 survey assessing US Black adult (age 18-49 years) knowledge and attitudes toward influenza (flu) and COVID-19 vaccination
2021 National Survey: Attitudes about Influenza, Pneumococcal Disease, and COVID-19
NFID 2021 National Survey on flu and pneumococcal disease including the impact of COVID-19
