Not only did Pfizer not know what they were doing: they weren't even trying to find out.
& neither were the other vaccine manufacturers.
Two years ago, on 21 October 2020, Peter Doshi, associate editor of the British Medical Journal, one of the most prestigious journals in the world, published an article pointing out that the vaccine manufacturers were not even trying to find out if the vaccines prevented transmission.
https://www.bmj.com/content/371/bmj.m4037
As phase III trials of covid-19 vaccines reach their target enrolments, officials have been trying to project calm. The US coronavirus czar Anthony Fauci and the Food and Drug Administration leadership have offered public assurances that established procedures will be followed.1 -4 Only a “safe and effective” vaccine will be approved, they say, and nine vaccine manufacturers issued a rare joint statement pledging not to prematurely seek regulatory review.5
But what will it mean exactly when a vaccine is declared “effective”? To the public this seems fairly obvious. “The primary goal of a covid-19 vaccine is to keep people from getting very sick and dying,” a National Public Radio broadcast said bluntly.6
Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston, said, “Ideally, you want an antiviral vaccine to do two things . . . first, reduce the likelihood you will get severely ill and go to the hospital, and two, prevent infection and therefore interrupt disease transmission.”
Yet the current phase III trials are not actually set up to prove either (table 1). None of the trials currently under way are designed to detect a reduction in any serious outcome such as hospital admissions, use of intensive care, or deaths. Nor are the vaccines being studied to determine whether they can interrupt transmission of the virus.
This is the chart showing not only that children, adolescents, immunocompromised patients, and pregnant and breastfeeding women were excluded from the phase 3 trials - but only prevention of symptomatic disease was being tested. Reduction in severe covid and interruption of transmission was not even tested.
So much for “safe and effective.”
Meanwhile Albert Bourla the CEO of Pfizer was telling everyone it stopped transmission.
the video links to bad cattitude