administer 1 dose of monovalent Pfizer-BioNTech COVID-19 Vaccine. the second primary dose of monovalent Pfizer-BioNTech COVID-19 Vaccine at least 3 weeks (21 days) after the first dose.
How long after second shot can you get Pfizer?
At least 2 months after 2nd dose or last booster, children aged 5 years can only get a Pfizer-BioNTech booster, and children aged 6–11 years can get a Pfizer-BioNTech or Moderna booster.