Updated Bivalent Boosters

This information is subject to change. Please double check resources and continue to monitor them for up to date information.

What is a Bivalent Booster?

The updated (bivalent) boosters are called "bivalent" because they protect against both the original COVID-19 virus as well as the Omicron variants BA.4 and BA.5.

The previous "monovalent" boosters were designed to protect only against the original COVID-19 virus. While they provide some protection against the Omicron variants, the updated (bivalent) boosters are more effective. Learn more about COVID-19 variants here.

Currently, both Pfizer and Moderna have developed updated (bivalent) COVID-19 booster doses. 

Who is Eligible?

The CDC recommends that people ages 5 years and older receive one updated (bivalent) booster if it has been at least 2 months since their last COVID-19 vaccine dose, whether that was:

  • Their final primary series dose, or
  • An original (monovalent) booster

Those who have received more than one monovalent booster are also recommended to get an updated (bivalent) booster. Please use this tool on the CDC's website to find out when you can get your booster.

Can I Mix and Match?

People ages 6 years and older can get a different product for their updated (bivalent) booster than they received for their primary series or last booster.