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2. COVID-19 vaccination in the United States - Wikipedia

   en.wikipedia.org/wiki/COVID-19_vaccination_in...

   The COVID-19 vaccination campaign in the United States is an ongoing mass immunization campaign for the COVID-19 pandemic in the United States. The Food and Drug Administration (FDA) first granted emergency use authorization to the Pfizer–BioNTech vaccine on December 10, 2020, [7] and mass vaccinations began four days later.

3. How the Different Types of COVID-19 Vaccines Work - Healthline

   www.healthline.com/.../types-of-covid-vaccines

   The four types of COVID-19 vaccines being used around the world are: messenger RNA (mRNA) vaccines. viral vector vaccines. protein subunit vaccines. whole virus vaccines. The table below provides ...

4. How to Tell If You're Fully Vaccinated Against COVID-19

   www.healthline.com/health/what-does-fully...

   Trusted Source. . The CDC considers people ages 12 and up fully vaccinated if they’ve received one of the updated bivalent boosters. In other words, if you got one of the original booster shots ...

5. COVID-19 Vaccines - WebMD

   www.webmd.com/vaccines/covid-19-vaccine/covid-19...

   The vaccine should slow the spread of COVID-19 around the world. Fewer people should get sick, and more lives can be saved. The Pfizer, Moderna, and Novavax vaccines have been shown to be at least ...

6. Which COVID-19 Vaccine Is Best? - Healthline

   www.healthline.com/.../which-covid-vaccine-is-best

   Staying up to date on your COVID-19 vaccines is important for maintaining protection against COVID-19. ... Effectiveness of the BNT162b2 vaccine among children 5-11 and 12-17 years in New York ...

7. Why You Need a Booster Even If You’re Vaccinated - WebMD

   www.webmd.com/vaccines/covid-19-vaccine/covid...

   Vaccines are your best protection against serious illness from COVID-19. If you’re fully vaccinated, the chance you’ll get very sick, end up in the hospital, or die from the disease is much lower.

8. COVID Vaccine Booster: Everything You Need to Know - WebMD

   www.webmd.com/vaccines/covid-19-vaccine/covid-19...

   The CDC recommends an additional booster shot for certain people to amp up their immune system against potential COVID-19 variants. If you got the J&J Janssen vaccine as your first vaccine and ...

9. COVID-19 vaccine - Wikipedia

   en.wikipedia.org/wiki/COVID-19_vaccine

   A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 , the virus that causes coronavirus disease 2019 . Prior to the COVID‑19 pandemic , an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...