How were the vaccines developed, tested and approved?
COVID-19 is a new virus that requires a new vaccine, but the vaccines that are now available are based on decades of scientific research. Researchers began working on a COVID-19 vaccine very early in 2020, and thousands of volunteers participated in clinical trials in order to ensure that the vaccines are safe and effective.
You probably have a lot of questions. That's normal. We have answers.
State vaccine information
For more information about your state's vaccine rollout plan, click your state below.
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The information on this site came from the following sources:
Centers for Disease Control and Prevention
John Hopkins Coronavirus Resource Center
Emergency Use Authorization for Vaccines Explained (FDA)
COVID Vaccine Studies Duke Health
How vaccines work (CDC)
More things to know about vaccines (Children’s Hospital of Philadelphia)