U.S. Department of Health & Human Services

09/28/2021 | Press release | Distributed by Public on 09/28/2021 09:38

Ensuring the Safety of COVID-19 Vaccines in the United States

To make sure that COVID-19 vaccines are safe, CDC expanded and strengthened the country's ability to monitor vaccine safety. CDC created new ways to gather more information about the safety of COVID-19 vaccines. These web-based platforms give CDC scientists information about the safety of COVID-19 vaccines in real time.

As a result, vaccine safety experts can monitor and detect issues that may not have been seen during the COVID-19 vaccine clinical trials. If any vaccine safety issues-also called adverse events- are reported, CDC scientists can quickly study them and determine if there is a safety concern with a particular vaccine. Here are some of the tools that CDC uses to keep close tabs on the safety of COVID-19 vaccines: