You’re referencing an unnamed CDC spokesperson trying to do damage control after the fact when the head of the CDC made the statement I quoted verbatim. The above comment I replied to with this quote said “I don't remember ever hearing from a reputable source that the vaccine would be 100% effective.” I provided an exact quote from the head of the CDC making that claim.

Furthermore, Biden made the same types of claims in town hall addresses to voters on more than one occasion.

The premise of this thread is the back and forth mixed messaging from medical as well as government leaders. That’s what has caused an uptick in lack of trust in institutions - especially medical - from a lot of people.