Journal of Clinical Trials
Open Access

Bainbridge Prepares, Bainbridge Island, WA, USA

Publications

• 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 We measured the amount of Pfizer-BioNTech COVID-19 vaccine that was left in 172 vials after six doses had been withdrawn per Centers for Disease Control (CDC) ..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

  Abstract HTML PDF