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Thread: How is vaccine efficacy determined?
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Old 11-22-2020, 02:46 PM
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Originally Posted by Buckeye Bleau View Post
What you are describing with the 50% receiving a placebo is a blind study that is used for a different purpose.
In this case they only want to know if it is effective or not and to what percentage it is efficacious.
So they would use known infected individuals and introduce the vaccine or healthy people then give them the pathogen and the vaccine. Right now they say over 90% effective so it resolved the ailment in over 9 of 10 participants.

There were some participants that died after receiving the vaccine, I am not sure where they would fall in the numbers, but then they don’t want to tell you about them.
From what you have said, the vaccine can also be used as a therapeutic to an individual who is diagnosed with Covid?

Very interesting about the participants in the trial who died. Is it possible those who died were infected with Covid already and were too ill for the vaccine to be effective in curing them? Just a thought.
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