“ Pfizer says its vaccine is preventing 91% of coronavirus cases in the six months after people are immunised.”
No proof.
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Really? No proof? The 91% efficacy rate comes from comparing the total outcome differences (six months after receiving their 2nd shot) between the folks in the clinical trial who received two placebo shots and the folks in the clinical trial who received two doses of the actual vaccine. I KNOW, MATH IS HARD.
https://www.bbc.com/news/health-56011982
EXTRACTS FROM THE ABOVE LINKED ARTICLE:
“Pfizer says its vaccine is preventing 91% of coronavirus cases in the six months after people are immunised....
... Pfizer analysed data from 46,000 people on the original clinical trial, exactly six months after their second dose....
... “The The high vaccine efficacy observed through up to six months following a second dose and against the variant prevalent in South Africa provides further confidence in our vaccine’s overall effectiveness,” chairman and chief executive officer Albert Bourla said.
Similar, long-term studies are taking place for all the vaccines including Oxford-AstraZeneca, but Pfizer has been the first to report.
“ between the folks in the clinical trial who received two placebo shots and the folks in the clinical trial who received two doses of the actual vaccine. I KNOW, MATH IS HARD.
…..
And yet we’re each group exposed equally?
Were they purposely exposed to covid?
Who made up the two groups - age, gender, race, etc?
And it is a tiny study that has not been reproduced by an outside group.
It is a press release …