[Bill14564]

Originally Posted by Tmarkwald

5% means one in twenty are unprotected. It has nothing to do with them catching anything.

And of that 1 in 20, the majority are either asymptomatic, if they get exposed, or naturally immune.

Do you put your seatbelt on when sitting in the car in a parking lot, on the off-chance that someone might hit you? That's what you are doing while wearing a mask.

And if you wear one once vaccinated, well, I guess there's no help. that's why shampoo bottles have directions, I suppose...

I believe both the trials and the recent, real-world reviews measured effectiveness against symptomatic illness. The vaccines are advertised as being 95% effective against developing Covid with symptoms, the trials did not measure for asymptomatic cases.

It isn't entirely clear whether the real-world reviews included asymptomatic cases. Since it is less likely that a vaccinated person would feel the need to be tested without first developing symptoms, it is likely that the breakthrough cases were primarily symptomatic.

EDIT: Here is a study that also looked for asymptomatic and pre-symptomatic cases.