What is COVID immunity, and how do you know if you have it?

Tayjah Davis, 12, receives a COVID-19 shot during a youth vaccination clinic in Minneapolis on Nov. 19, 2021. Researchers are still tracking the long-term protection against COVID-19 after a third booster.
Tim Evans for MPR News 2021
Go Deeper.
Create an account or log in to save stories.
Like this?
Thanks for liking this story! We have added it to a list of your favorite stories.