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COVID-19 Vaccine

ByMargot L. Savoy, MD, MPH, Lewis Katz School of Medicine at Temple University
Reviewed/Revised Apr 2024
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Coronavirus disease 2019 (COVID-19) vaccines provide protection against COVID-19. COVID-19 is the disease caused by infection with the SARS-CoV-2 virus. There are multiple COVID-19 vaccines currently in use worldwide (see the UNICEF COVID-19 Vaccine Market Dashboard and WHO Coronavirus [COVID-19] Dashboard). This topic includes only those vaccines currently in use in the United States.

In the United States, the updated 2023–­2024 formulation of the following COVID-19 vaccines are in use:

  • SARS-CoV-2 virus (COVID-19) mRNA vaccine produced by Pfizer-BioNTech recommended for people 6 months and older

  • SARS-CoV-2 virus (COVID-19) mRNA vaccine produced by Moderna recommended for people 6 months and older

  • SARS-CoV-2 virus (COVID-19) recombinant spike protein nanoparticle vaccine produced by Novavax recommended for people 12 years of age and older

The SARS-CoV-2 virus (COVID-19) adenovirus vector vaccine produced by Janssen/Johnson & Johnson is no longer available in the United States.

The best way to prevent infection, severe illness, and death from COVID-19 is to be up to date with COVID-19 vaccinations. Unvaccinated people are more likely to die of COVID-19 than vaccinated people. 

For more information, see the CDC: Interim Clinical Considerations for Use of COVID-19 Vaccines in the United States, COVID-19 Advisory Committee on Immunization Practices Vaccine Recommendations, the FDA prescribing information for the Pfizer-BioNTech and Moderna vaccines, and the FDA fact sheets for Pfizer-BioNTech, Moderna, and Novavax.

(See also Overview of Immunization.)

Administration of COVID-19 Vaccine

For COVID-19 vaccines available for use in the United States, all dose and administration information, including for all age groups and people with special conditions, is available from the CDC at Interim Clinical Considerations for Use of COVID-19 Vaccines Currently Approved or Authorized in the United States.

Side Effects of COVID-19 Vaccine

For information about side effects, see the U.S. Food and Drug Administration (FDA).

More Information

The following English-language resources may be useful. Please note that THE MANUAL is not responsible for the content of these resources.

  1. Centers for Disease Control and Prevention (CDC): Vaccines for COVID-19

  2. CDC: Use of COVID-19 Vaccines in the United States

  3. European Centre for Disease Prevention and Control (ECDC): Coronavirus Disease (COVID-19): Recommended vaccinations

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