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  2. 65 And Older & Got A 2023-24 COVID-19 Shot? You May Be Eligible For An Additional Dose. Use The Vaccine Finder To Find COVID-19 Vax Locations Near You & Help Stay Protected.

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  1. May 20, 2021 · The first U.S. multisite test-negative design vaccine effectiveness study among HCP found a single dose of Pfizer-BioNTech or Moderna COVID-19 vaccines to be 82% effective against symptomatic COVID-19 and 2 doses to be 94% effective. What are the implications for public health practice?

    • Tamara Pilishvili, Katherine E. Fleming-Dutra, Jennifer L. Farrar, Ryan Gierke, Nicholas M. Mohr, Da...
    • 2021
  2. Apr 1, 2021 · Analysis of 927 confirmed symptomatic cases of COVID-19 demonstrates BNT162b2 is highly effective with 91.3% vaccine efficacy observed against COVID-19, measured seven days through up to six months after the second dose. Vaccine was 100% effective in preventing severe disease as defined by the U.S. Centers for Disease Control and Prevention and ...

  3. Mar 9, 2021 · The Pfizer-BioNTech clinical trial evaluated vaccine effectiveness 1 week after participants had gotten their second dose. Researchers found that the vaccine was 95 percent effective at...

  4. Mar 18, 2021 · 2642 days (Pfizer-BioNTech) or 3342 days (Moderna) after first dose; no second dose received. ** >42 days after first dose; no second dose received. †† Received second dose <17 days (Pfizer-BioNTech) or <24 days (Moderna) after first dose. §§ Received second dose 17–25 days (Pfizer-BioNTech) or 24–32 days (Moderna) after ...

    Jurisdiction And Demographic ...
    Completion Status† Among Persons ...(no.)
    Completion Status† ...(completed Series)
    Completion Status† Among Persons With Sufficient Time To Receive Second Dose (%) ...(no Second Dose But Remained Within Allowable Interval§)
    Total, no. (%)
    12,496,258
    10,999,097 (88.0)
    1,078,336 (8.6)
    Alabama
    129,629
    (87.3)
    (9.9)
    Alaska
    57,293
    (90.5)
    (6.9)
    Arizona
    274,548
    (85.4)
    (11.6)
    • Jennifer L. Kriss, Laura E. Reynolds, Alice Wang, Shannon Stokley, Matthew M. Cole, La Treace Q. Har...
    • 2021
  5. Apr 25, 2024 · People aged 65 years and older who received 1 dose of any updated 2023-2024 COVID-19 vaccine (Pfizer-BioNTech, Moderna or Novavax) should receive 1 additional dose of an updated COVID-19 vaccine at least 4 months after the previous updated dose. For more Novavax information, click or tap here.

  6. Apr 19, 2024 · Efficacy: For the original shots, 91% efficacy in preventing symptomatic COVID-19 in people 16 years of age or older a week or more after receipt of the second dose. Safety: No serious safety...

  7. Feb 17, 2021 · Polack et al. (Dec. 31) 1 report a vaccine efficacy of 94.8% against Covid-19 after two doses of the messenger RNA (mRNA) vaccine BNT162b2 (Pfizer–BioNTech).

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    related to: how effective is the pfizer vaccine after 2nd dose
  2. 65 And Older & Got A 2023-24 COVID-19 Shot? You May Be Eligible For An Additional Dose. Use The Vaccine Finder To Find COVID-19 Vax Locations Near You & Help Stay Protected.

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