In the United States, there are currently three vaccines in use to prevent COVID-19. These vaccines were developed by Pfizer, Moderna, and Johnson & Johnson. The federal government and partners (e.g., pharmaceutical companies) have been working since the pandemic started to make COVID-19 vaccines available as soon as possible. Many more COVID-19 vaccine candidates are currently in development or under evaluation.
Due to the critical need for COVID-19 vaccines, the U.S. Food and Drug Administration (FDA) issued an Emergency Use Authorization (EUA) for the Pfizer, Moderna, and Johnson & Johnson vaccines, prior to the vaccines receiving full FDA licensure. An Emergency Use Authorization does not bypass requirements to show that the vaccine is safe and effective.
Find out more about COVID-19 vaccines:
- U.S. Food & Drug Administration
- Centers for Disease Control & Prevention
- COVID-19 vaccine distribution in Philadelphia
- FAQs about COVID-19 vaccine