Largest real-world study of third dose of COVID-19 vaccine effectiveness shows Delta resistance

[rangerrebew]

October 29, 2021
Largest real-world study of third dose of COVID-19 vaccine effectiveness shows Delta resistance

by Clalit Research Institute
 

The Clalit Research Institute, in collaboration with researchers from Harvard University, analyzed one of the world's largest integrated health record databases to examine the effectiveness of the third dose of the Pfizer/BioNTech BNT162B2 vaccine against the Delta variant of SARS-CoV-2. The study provides the largest peer-reviewed evaluation of the effectiveness of a third "booster" dose of a COVID-19 vaccine in a nationwide mass-vaccination setting. The study was conducted in Israel. It is published in The Lancet journal.

Many countries are currently experiencing a resurgence of SARS-CoV-2 infections despite hitherto successful vaccination campaigns. This may be due to the greater infectiousness of the Delta (B.1.617.2) variant of SARS-CoV-2, and to waning immunity of vaccines administered months earlier. In the face of the current resurgence, several countries are planning to administer a third booster dose of mRNA COVID-19 vaccine.

This study suggests that a third vaccine dose is effective in reducing severe COVID-19-related outcomes compared to individuals who have received two vaccine doses at least 5 months ago. It is the first to estimate the effectiveness of a third dose of an mRNA COVID-19 vaccine—BNT162b2 specifically—against severe outcomes with adjustment for various possible confounders, including comorbidities and behavioral factors. The study's large size also allows a more precise assessment of the vaccine's effectiveness across different time periods, different subpopulations (by sex, age and number of comorbidities), and different severe outcomes (which are rarer and thus require greater sample size). A recent clinical trial conducted by BioNTech included a smaller sample size and did not estimate the third-dose's effects for more severe outcomes.

https://medicalxpress.com/news/2021-10-largest-real-world-dose-covid-vaccine.html

[rangerrebew]

As I was reading this my mind turned to the required shots of the Biden administration.  It struck me that medical research and the government have teamed up to force Americans to be guinea pigs for vaccines which are neither well tested nor effective.  I suspect the vaccines given may have different types of vaccines to test which is best though they are all supposed to be the same,  Given Fauci's history there is reason to suspect it could be happening.

[Hoodat]

Maybe if Big Pharma came up with a vaccine against the virus itself instead of conducting experimental programs against their predictions of what the next spike protein will look like, then maybe they wouldn't have to encounter any resistance.

It took only two years to develop a vaccine against SARS-1.  Why can't they do the same for SARS-2?