Before the U.S. Food and Drug Administration (FDA) determines whether to approve a vaccine or authorize a vaccine for emergency use, clinical trials are conducted to determine how well it works. This is known as effectiveness.After FDA approves a vacci…
Tag: Prevention & Infection Control
Different COVID-19 Vaccines
Overview of what you should know about the different COVID-19 vaccines, including vaccine types and how they work to provide protection against COVID-19, which vaccines have been authorized and recommended in the United States, and which are in Phase 3…
Facts about COVID-19 Vaccines
With the possibility of a limited supply of one or more COVID-19 vaccines becoming available before the end of 2020, accurate vaccine information is critical. It can be difficult to know which sources of information you can trust. Learn more about comm…
If You Are Sick or Caring for Someone
Take steps to care for yourself and help protect others – COVID-19.
Understanding How COVID-19 Vaccines Work
Understanding How COVID-19 Vaccines Work