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2. Oxford–AstraZeneca COVID-19 vaccine - Wikipedia

   en.wikipedia.org/wiki/Oxford–AstraZeneca_COVID...

   The Oxford–AstraZeneca COVID‑19 vaccine is used to provide protection against infection by the SARS-CoV-2 virus in order to prevent COVID-19 in adults aged 18 years and older. [1] The medicine is administered by two 0.5 ml (0.017 US fl oz) doses given by intramuscular injection into the deltoid muscle (upper arm).

3. What You Need To Know About AstraZeneca vs Pfizer Vaccine

   www.healthline.com/.../astrazeneca-vs-pfizer-vaccine

   The AstraZeneca vaccine is stable at higher temperatures than the Pfizer-BioNTech vaccine, able to be refrigerated between 35°F (2°C) and 46°F (8°C) rather than stored in an ultra-cold freezer ...

4. AstraZeneca Vaccine: What You Need to Know - Healthline

   www.healthline.com/health/adult-vaccines/astra...

   The AstraZeneca COVID-19 vaccine, now called Vaxzevria, is a viral vector vaccine, just like the Johnson & Johnson vaccine. It uses a chimpanzee adenovirus to carry spike proteins from the ...

5. 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 ...

6. 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.

7. Chart: COVID Vaccines Compared - WebMD

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

   The CDC recommends that if you are ages 5 years and up that you get one updated (bivalent) booster if it has been at least 2 months since your last COVID-19 vaccine dose.

8. 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 ...

9. 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 ...