People 6 months and older who have not been vaccinated can receive the updated, bivalent vaccine.
CDC recommends people 5 and older receive one dose of bivalent vaccine. Some people, like those who are immunocompromised or over 65, are eligible for a second bivalent dose. Children 6 months through 5 years may receive a bivalent vaccine, but the number of doses will depend on the vaccine and their vaccination history.
The CDC has guidance for everyone 6 months and older based on age and medical condition.