Preprint Research on Pfizer COVID-19 Vaccine Shows Greater Efficacy Two Weeks Post Administration

Article

New data from an unreviewed, preprint research article indicate first-dose immunization efficacy of the Pfizer-BioNTech coronavirus 2019 vaccine improves by 51% 13-24 days post administration.

New data from an unreviewed, preprint research article indicates first-dose immunization efficacy from Pfizer-BioNTech coronavirus 2019 (COVID-19) vaccine BNT162b2 is improved 51% after 13-24 days among Israel residents given the vaccine. The retrospective cohort assessment, pending review and publication, is among the first real-world indications of first-dose efficacy of the currently authorized mRNA vaccines for the pandemic.

Israel is currently the most vaccinated country against COVID-19, per capita, worldwide. According to Our World in Data, more than one-third of the total population has received at least 1 COVID-19 vaccine dose as of Thursday—or, nearly 3 million people. Off the strength of phase 3 results for BNT162b2—which was used to support its approved Emergency Use Authorization (EUA) under the FDA last month, and showed COVID-19 prevention efficacy of greater than 90% among adults after their second dose—the current understanding is that the Pfizer-BioNTech product is among the most promising prophylaxes for the pandemic virus.

That said, investigators wrote, real-life vaccine effectiveness evaluation during the rollout phase is “urgently needed, especially given the global disease surge.”

Click to continue reading on ContagionLive.

Related Videos
Laboratory test tubes and solution with stethoscope background | Image Credit: Shutter2U - stock.adobe.com
Image credit: Andrea Izzotti
Inflation Reduction Act is shown using the text and the US flag - Image credit: Andrii | stock.adobe.com
Pharmacy Interior | Image Credit: Tyler Olson - stock.adobe.com
Male pharmacist selling medications at drugstore to a senior woman customer | Image Credit: Zamrznuti tonovi - stock.adobe.com
Pharmacist assists senior woman in buying medicine in pharmacy - Image credit: Drazen | stock.adobe.com
Pharmacy, medicine and senior woman consulting pharmacist on prescription. Healthcare, shopping and elderly female in consultation with medical worker for medication box, pills or product in store - Image credit: C Daniels/peopleimages.com | stock.adobe.com
Image credit: fidaolga - stock.adobe.com
Pharmacists checking inventory at hospital pharmacy- Image credit: Jacob Lund | stock.adobe.com
Young male pharmacist giving prescription medications to senior female customer in a pharmacy | Image Credit: Zamrznuti tonovi - stock.adobe.com
© 2023 MJH Life Sciences

All rights reserved.