I’ll explain the results of Pfizer’s Covid vaccine
Pfizer's announcement on the anti Covid vaccine commented on by virologist Roberto Burioni
(Article published in Medicalfacts)
They are not definitive data and it is extremely unusual for a company to release data before the end of a clinical trial, but there is no need to explain that we are living in a much more than unusual time.
PFIZER
Furthermore, Pfizer – a listed company – is a very serious company and in the US spreading incorrect information when one is listed on the stock exchange leads to catastrophic consequences, because those parts are very strict in this area.
THE PRELIMINARY DATA ON THE VACCINE
That said, Pfizer yesterday announced that the preliminary (I repeat, preliminary) efficacy data of its vaccine are excellent : it would have 90% protective activity.
THE PHASES OF THE TRIAL
Let's explain what happened better. Pfizer, after demonstrating in Phase 1 and 2 studies that the vaccine is reasonably safe and elicits a potentially protective immune response, moved to Phase 3. It took 44,000 people, divided them into two groups of 21,000 and half. vaccinated with the Covid vaccine, half did not. Obviously the study participants do not know which group they belong to.
COVID CASES
After that, a week after the second (and final) dose of the vaccine, the researchers began counting the cases of Covid-19 that occurred in the two groups. To date, 94 have occurred, and it seems that they are almost all among the unvaccinated.
CONCLUSIONS
To finish the study, you need to get to 156 infected, and things could also change. But – to make a football comparison – we are in the tenth of the second half and we are winning 3 to zero. Let's hold on, because the definitive confirmation of the effectiveness could soon arrive and soon the end of this nightmare we have been living for many months.
(Article published in Medicalfacts)
This is a machine translation from Italian language of a post published on Start Magazine at the URL https://www.startmag.it/sanita/vi-spiego-i-risultati-del-vaccino-anti-covid-di-pfizer/ on Tue, 10 Nov 2020 05:20:02 +0000.