Learn about the new, updated COVID-19 vaccine
The updated COVID-19 vaccine is a new version of the COVID-19 vaccine. It’s made to protect you from getting very sick or dying from newer types of the COVID-19 virus, such as the Omicron strain. You may also hear it called a bivalent booster or the Omicron booster.
This fact sheet answers common questions, such as:
- Why do I need an updatedCOVID-19 vaccine? Does that mean the COVID-19 vaccines aren’t working?
- Am I fully vaccinated even if I don’t get an updated COVID-19 vaccine?
- Why did I still get COVID-19 even though I was vaccinated?
- How do I know which vaccine I got?
- Can I get the booster as my first vaccine?
- Is the COVID-19 vaccine the same as the flu shot?
- Is it safe to get the flu shot and the COVID-19 shot at the same time?

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