Journal of Clinical Trials

Journal of Clinical Trials
Open Access

ISSN: 2167-0870

+44 7868 792050

Rajlaxmi Bais

Bainbridge Prepares, Bainbridge Island, WA, USA

  • Research Article   
    Assessing Unused Residual Pfizer-BioNTech COVID-19 Vaccine: A Community Observational Study
    Author(s): Stephen Hubbard* and Rajlaxmi Bais

    Background: Worldwide morbidity and mortality associated with Covid-19 are severe and ongoing. The Pfizer- BioNTech vaccine is said to be up to 95% effective against severe disease or death. We were able to demonstrate that an additional 9.8% of COVID-19 vaccine doses could theoretically be given if the residual vaccine within the reconstituted Pfizer vials after six doses is extracted was used. This could be achieved by aseptically combining this excess vaccine from multiple vials to achieve full 0.3 ml doses. Methods: An observational study was conducted in April, 2021, at a mass vaccine site run by a community volunteer organization on Bainbridge Island, Washington. We measured the amount of Pfizer-BioNTech COVID-19 vaccine that was left in 172 vials after six doses had been withdrawn per Centers for Disease Control (CDC) .. View More»
    DOI: 10.35248/2167-0870.21.11.476

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