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re: Pfizer efficacy down to 42% while FDA standard for safe/effective/approval is 50%

Posted on 8/11/21 at 5:47 am to
Posted by jonnyanony
Member since Nov 2020
10326 posts
Posted on 8/11/21 at 5:47 am to
quote:

How do they compare to natural immunity?


If you had a non Delta variant infection they're effectively the same.
Posted by jimmy the leg
Member since Aug 2007
34967 posts
Posted on 8/11/21 at 5:48 am to
quote:

If you had a non Delta variant infection they're effectively the same.


Based on what? Links?


ETA

There is zip about natural immunity being in the 42% to 87% range concerning the Delta variant. There are studies that show it works at a higher percentage (90%+), but nothing in the range that you suggested (“effectively the same”).
This post was edited on 8/11/21 at 5:57 am
Posted by David_DJS
Member since Aug 2005
18174 posts
Posted on 8/11/21 at 3:49 pm to
quote:

If you had a non Delta variant infection they're effectively the same.

Thanks. I thought as much, though read something on these boards a few weeks ago that suggested natural immunity was actually a little more robust -v- variants because of the specificity of the vaccines. "Specificity" may not be the right word to use there, but you know what I mean.
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