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Old 18th Apr 2021, 14:41
  #4408 (permalink)  
Troo believer
 
Join Date: Oct 2013
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Originally Posted by nomorecatering
I think a lot of people don;t quite understand what a vaccines "efficay" really means.

This should explain it.

https://www.youtube.com/watch?v=K3odScka55A
Fantastic explanation.
This screen shot says it all.



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