Frequently asked questions about COVID-19 vaccination
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Frequently asked questions about COVID-19 vaccination

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  • Corporate Authors:
    National Center for Immunization and Respiratory Diseases (U.S.). Division of Viral Diseases.
  • Description:
    Updated Oct. 4, 2021

    CDC now recommends that people aged 65 years and older, residents aged 18 years and older in long-term care settings, and people aged 50–64 years with underlying medical conditions should receive a booster shot of Pfizer-BioNTech’s COVID-19 Vaccine at least 6 months after completing their Pfizer-BioNTech primary series. Other groups may receive a booster shot based on their individual risk and benefit. Learn more.

  • Content Notes:
    If I have already had COVID-19 and recovered, do I still need to get vaccinated with a COVID-19 vaccine? -- Is it safe for my child to get a COVID-19 vaccine? -- Why should my child get vaccinated against COVID-19? -- What is the update on the Johnson & Johnson’s Janssen COVID-19 Vaccine? -- What are the ingredients in COVID-19 vaccines? -- Do I need to wear a mask and avoid close contact with others if I am fully vaccinated? -- Can I choose which COVID-19 vaccine I get? -- What are the most common side effects after getting a COVID-19 vaccine? -- If I am pregnant, can I get a COVID-19 vaccine? -- How long does protection from a COVID-19 vaccine last? -- How many doses of COVID-19 vaccine will I need to get? -- If I have an underlying condition, can I get a COVID-19 vaccine? -- Can I get vaccinated against COVID-19 while I am currently sick with COVID-19?
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