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

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

    of people receiving a COVID-19 vaccine for the first time experienced this side effect. Guillain-Barré syndrome (GBS). GBS is a rare side effect that can cause the immune system to attack healthy ...

  3. New COVID Vaccine 54% Effective at Preventing Symptoms - WebMD

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

    The 54% vaccine effectiveness is based on a study from September through earlier this month of 9,222 COVID tests in the Community Access to Testing SARS-CoV-2 pharmacy testing program. Both CVS ...

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

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

    Healthy adults have the option of receiving any of the three COVID-19 vaccines. These are the: Pfizer mRNA vaccine. Moderna mRNA vaccine. Johnson & Johnson (J&J) adenoviral vector vaccine ...

  5. Shortness of Breath After COVID-19 Vaccine: Causes and Treatment

    www.healthline.com/health/shortness-of-breath...

    In rare cases, shortness of breath can happen after the COVID-19 vaccine. This can be caused by rare adverse effects like myocarditis, pericarditis, or anaphylaxis. With treatment, many people ...

  6. FDA OKs New Treatment to Prevent COVID in High-Risk People

    www.webmd.com/covid/news/20240326/fda-oks-new...

    March 26, 2024 – The FDA has approved a new antibody treatment to help prevent COVID-19 in those who are most at risk from the virus. In its announcement, the agency explained that the new ...

  7. Blood Donation and COVID-19 Vaccine: What to Know - WebMD

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

    No. Your body has about 10 pints of blood. When you donate blood, you only give about 1 pint. If you’ve had the COVID-19 vaccine, your antibody levels won’t go down after you give blood. Your ...

  8. 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.

  9. 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 ...