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

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

   Over the course of the COVID-19 pandemic, COVID-19 vaccine mandates have been enacted by numerous states and municipalities in the United States, and also by private entities. In September 2021, President Joe Biden announced that the federal government would take steps to mandate COVID-19 vaccination for certain entities under the authority of ...

4. Vaccine Mandates: What to Know - WebMD

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

   California became the first state to mandate all state and health care workers to show proof of COVID-19 vaccination or be tested at least once a week. And Hawaii allows fully vaccinated ...

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

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

   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, you’ll want to ...

7. 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 ...

8. 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).

9. How Long Do the COVID-19 Vaccines Protect You? - Healthline

   www.healthline.com/health/how-long-does-covid...

   Studies have also shown that the vaccine is 85 percent effective against serious illness from COVID-19. How long immunity lasts: Two pre-print studies released in July 2021 suggested that ...