What evidence is there that masks provide no additional protection for vaccinated people?
Are there special types of virus particles that come from vaccinated people that pass freely through filters? Or is it that when on the face of a vaccinated person, a mask is unable to filter out viruses?
> What evidence is there that masks provide no additional protection for vaccinated people?
The question is what evidence is there that they provide additional protection.
You don’t disprove things, you prove them.
Since there’s lack of evidence of efficacy, so that affects the decision.
This is kind of why I think people are logically waking through available evidence. There’s some material on CDC’s page [0] but I’m not familiar with the field so don’t know all the specific papers and studies and what not.
As a layperson, just reading the CDC site I think it’s that a vaccinated person, almost always, does not produce vaccine particles to spread. Since masks reduce spread of particles from infected people, the principle of the mask would not apply. Since vaccinated means no particles to prevent spreading.
Of course the vaccine isn’t 100% effective, but I assume protective enough that wearing masks produces no additional population protection, or that the benefit does not outweigh the cost.
a) Masks reduce transmission by physically blocking viruses
b) Vaccinated people can contract COVID by breathing in viruses
c) Vaccinated people can infect others by breathing out viruses
There's no reason to believe that the mechanism in (a) doesn't work for vaccinated people any more than it wouldn't work for people in Vermont or people named Jake, even if there hasn't been a specific study on those subgroups.
Yes, vaccinated people are significantly less likely to be infected and to infect others. That doesn't mean it doesn't happen or that a mask wouldn't reduce that risk further.
Whether or not it's worth the hassle of wearing a mask is a reasonable question, but that's a risk/reward tradeoff question, not a question of whether or not a mask reduces risk, which is what your claim is.
Are there special types of virus particles that come from vaccinated people that pass freely through filters? Or is it that when on the face of a vaccinated person, a mask is unable to filter out viruses?