
If you are not yet eligible for a booster, you are considered up to date. If you got 1 dose of Moderna, Novavax, or Pfizer-BioNTech, it is best to get the same vaccine again to complete the primary series. You will need to complete the primary series.If You Started But Didn’t Complete a Primary Series

Therefore, people who receive a mixed primary series, meaning two different COVID-19 vaccines, have completed the series. Receive 2 doses of a 2-dose accepted COVID-19 vaccineĬDC does not recommend mixing different COVID-19 vaccines for the primary series, but CDC is aware that mixing COVID-19 vaccines for the primary series is increasingly common in many countries outside the United States.Receive 1 dose of a single-dose accepted COVID-19 vaccine.If the FDA has not approved or authorized a vaccine there may be limited data available or reviewed on the safety or effectiveness of the COVID-19 vaccine.Wait at least 28 days after the last dose you received of that vaccine then start COVID-19 vaccination over with a COVID-19 vaccine that has been approved or authorized by the FDA.If You Receive a Vaccine That is Not in the U.S. Staying up to date: If you have completed your primary series, but are not yet eligible for a booster, you are also considered up to date. There is not a recommendation to get another updated booster dose. One updated booster dose: If you have completed your updated booster dose, you are currently up to date.



A longer time between the 1st and 2nd primary doses may increase how much protection the vaccines offer, and further minimize the rare risk of myocarditis and pericarditis.People aged 6 months through 64 years, and especially males aged 12 through 39 years, may consider getting the 2nd primary Pfizer-BioNTech, Moderna, or Novavax 8 weeks after the 1st dose.Getting your 2nd dose: Talk to your healthcare or vaccine provider about the timing for the 2nd dose in your primary series.
