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  1. Oct 2021
  2. www.bmj.com www.bmj.com
    Covid-19: Antibody levels fall after second Pfizer dose, but protection against severe disease remains, studies indicate
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    1. jackiekrauss 13 Oct 2021

      Mahase, E. (2021). Covid-19: Antibody levels fall after second Pfizer dose, but protection against severe disease remains, studies indicate. BMJ, 375, n2481. https://doi.org/10.1136/bmj.n2481

      is:article lang:en COVID-19 vaccine Israel Pfizer-BioNTech antibody concentration healthcare worker decrease longitudinal antibody testing immunosuppressed people
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