Before a vaccine is ever recommended for use, it’s tested in labs. This process can take several years. FDA uses the information from these tests to decide whether to test the vaccine with people.
Once a vaccine is approved, it continues to be tested. The company that makes the vaccine tests batches to make sure the vaccine:
Potent (It works like it’s supposed to)
Pure (Certain ingredients used during production have been removed)
Sterile (It doesn’t have any outside germs).


Every batch of vaccines is tested for quality and safety.

FDA reviews the results of these tests and inspects the factories where the vaccine is made. This helps make sure the vaccines meet standards for both quality and safety. Testing and evaluation of the vaccine before it’s licensed by the Food and Drug Administration (FDA) and recommended for use by the Centers for Disease Control and Prevention (CDC).

COVID-19 Vaccines




monitoring for problems and side effects

Authorization for emergency use

tiny red spots on the skin (petechiae)

Vaccine Adverse Event Reporting System (VAERS)

CDC recommends you get a COVID-19 vaccine

Testing Locations

Fall Church

6305 Castle Place Suite 2D Falls Church

VA 22044

College Park(Melbourne)

4701 College Park(Melbourne)

MD 20740-2540

New Carrolton

8500 Annapolis Rd Suite 200 New Carrolton

MD 20784

Tyson corner

Tyson corner, 1980 Gallows Rd Vienna

VA 22182

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