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

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

   The CDC recommends that everyone ages 5 and older should be vaccinated against COVID-19. As of writing, the Pfizer vaccine is the only vaccine that’s authorized for children. Currently, all ...

3. Chart: COVID Vaccines Compared - WebMD

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

   The Pfizer, Moderna, Novavax, and Johnson & Johnson vaccines are all highly effective in protecting you from the virus that causes COVID-19. The CDC says there’s a preference for the mRNA ...

4. Pfizer–BioNTech COVID-19 vaccine - Wikipedia

   en.wikipedia.org/wiki/Pfizer–BioNTech_COVID-19...

   The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, [2] [32] is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech. For its development, BioNTech collaborated with the American company Pfizer to carry out clinical trials, logistics, and manufacturing. [44] [45] It is authorized for use ...

5. The Most Common Side Effects of the COVID-19 Vaccine - Healthline

   www.healthline.com/health/vaccinations/side...

   fever. headache. muscle pain. nausea. pain at the injection site. redness at the injection site. swelling at the injection site. According to the CDC, some people experience more side effects ...

6. Why Two Doses of COVID-19 Vaccine for Pfizer and Moderna?

   www.healthline.com/health/why-two-doses-of-covid...

   The bottom line. Some COVID-19 vaccines, such as those produced by Pfizer-BioNTech and Moderna, require two doses. Others, such as the Johnson & Johnson vaccine, only require one dose. Some ...

7. 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 ...

8. 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 ...

9. 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 ...