About the Vaccine

 

Last updated 4/12/2022

COVID-19 vaccines protect against severe illness, hospitalization and death. A safe, effective, free COVID-19 vaccine is available to everyone ages 5 and older. Everyone ages 12 and older should also get a booster dose for added protection. A second booster dose is available for people at higher risk.

Why Should I Get Vaccinated?

The vaccines give you strong protection from serious illness, hospitalization and death from the virus. Together, the vaccine and other healthy habits, like a wearing a mask and improving air flow in indoor spaces, offer the best protection from COVID-19.

 
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Am I Up-to-Date on My Vaccination?

A person is up-to-date with their COVID-19 vaccination if they have received all recommended doses in the primary series and one booster when eligible. People ages 50+ and certain immunocompromised individuals are eligible for second booster shots, but getting a second booster is not necessary to be considered up-to-date.

How Do the Vaccines Work?

The Pfizer and Moderna COVID-19 vaccines use messenger RNA (mRNA) to teach the body's cells to produce antibodies to protect you from COVID. Both of these vaccines require at least two doses. The Johnson & Johnson vaccine is what is called a “viral vector vaccine.” It uses a modified version of a different (and harmless) virus to deliver important instructions to our cells to fight infections. The Johnson & Johnson vaccine only requires one dose. The vaccines teach our bodies how to protect us against future infection with the virus that causes COVID-19.  

Are the Vaccines Safe?

Yes. Although the vaccines were developed in record time, they have gone through the same rigorous Food and Drug Administration (FDA) process as every other vaccine, meeting all safety standards. No steps were skipped. In fact, the state of California added another step by creating its own safety-review committee. Millions of people have been safely vaccinated around the world already. Click to learn more.