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Up-to-date Information: Up-to-Date Info : To find the latest CDC information on this topic go to: https://www.cdc.gov/coronavirus/2019-nCoV/index.html

COVID-19 vaccines that require 2 shots

Supporting Files Public Domain
File Language:
English


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  • Alternative Title:
    COVID-19 vaccines that require two shots
  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.
  • Description:
    Updated Dec. 3, 2021

    • 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. If you received a Pfizer-BioNTech or Moderna COVID-19 vaccine, you should get the same product when you need a second shot or additional primary dose. However, mixing and matching COVID-19 vaccines is allowed for booster shots.

    • You should get your second shot even if you have side effects after the first shot, unless a vaccination provider or your doctor tells you not to get it.

    • If you have a weakened immune system due to other diseases or medications, you can receive a COVID-19 vaccine if you have not had a severe allergic reaction to any of the ingredients in the vaccine.

    • People with moderately or severely compromised immune systems ages 12 years and older who completed their Pfizer-BioNTech COVID-19 vaccine primary series and ages 18 years or older who completed their Moderna COVID-19 vaccine primary series should get an additional primary dose followed by a booster shot.

    • Everyone age 18 years and older who received both doses of the Pfizer-BioNTech COVID-19 vaccine or Moderna COVID-19 vaccine should get a booster shot.

  • Subjects:
  • Document Type:
    Webpage
  • Name as Subject:
  • Place as Subject:
    United States
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:015e34a61ad501b7b5bab19b3374aeb2957f2adfae9570183eb3ab969f835866
  • Download URL:
  • File Type:
    Filetype[PDF - 611.62 KB ]

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