A person is considered fully vaccinated if they have received one dose of the Johnson & Johnson vaccine. Those who received the Johnson & Johnson vaccine should get a booster if at least 2 months have passed since their single-dose primary regimen, and they are 18 years of age or older. The CDC has approved “mix and match” booster doses for those who are eligible for a booster dose after their primary series. This means that a person can receive a booster of a COVID-19 vaccine that is different than the COVID-19 vaccine they received for their primary series. They may choose to get any one of the three approved vaccines for their booster (Pfizer, Moderna, and Johnson & Johnson). Bring your COVID-19 Vaccination Record Card to your appointment.