How far apart are COVID-19 vaccine doses given?
Two doses of Pfizer-BioNTech vaccine should be given 3 weeks (21 days) apart.
When should you take the second COVID-19 vaccine?
The timing between your first and second shots depends on which vaccine you received. If you received the Pfizer-BioNTech COVID-19 Vaccine, you should get your second shot 3 weeks (or 21 days) after your first.
When can I take a third Moderna COVID-19 shot?
Moderately to severely immunocompromised people should get an additional primary shot (third dose) at least 28 days after their second shot. Booster Shot: People ages 18 years and older who received a Moderna primary series should get a booster shot at least 6 months after completing their primary series.
What is the interval between the first and second doses of the Pfizer and Moderna COVID-19 vaccines?
* The recommended interval between the first and second dose is 21 days for Pfizer-BioNTech and 28 days for Moderna; in this study, second doses received 17–25 days (Pfizer-BioNTech) and 24–32 days (Moderna) after the first dose were included.
How many injections do you need for the Pfizer COVID-19 vaccine?
Number of shots: 2 shots, 21 days apart
Is there a grace period for receiving the COVID-19 vaccine?
Individuals who receive the second dose of an mRNA COVID-19 vaccine no more than 4 days before (referred to as the “grace period”) or at any time after the recommended second dose date are considered to have completed the primary series.
How many doses of the Moderna COVID-19 vaccine is recommended?
If you receive a Pfizer-BioNTech or Moderna COVID-19 vaccine, you will need 2 initial shots to complete the primary series. CDC does not recommend mixing products for a two dose primary vaccine series or an additional primary dose.