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  1. Oct 2021
  2. www.nytimes.com www.nytimes.com
    An extra J. & J. shot substantially boosts protection against Covid, the company reports.
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    1. jackiekrauss 08 Oct 2021

      Zimmer, C. (2021, September 21). An extra J. & J. shot substantially boosts protection against Covid, the company reports. The New York Times. https://www.nytimes.com/2021/09/21/health/johnson-and-johnson-shot.html

      is:news lang:en Johnson & Johnson vaccine second dose 94 percent efficacy emergency authorization Pfizer-BioNTech booster shot waning antibody level
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    nytimes.com/2021/09/21/health/johnson-and-johnson-shot.html