@freemo from what I understand
Just because you are vaccinated does not mean you can't host the virus and pass it on to others.
Vaccination simply helps the body build the immune system by being presented with an inert version of the virus, as far as I understand the body can then produce antibodies that recognise the spike proteins.
The body can then recognise the virus and, hopefully produce the correct response.
When vaccines work they are usually great at stopping the spread. For the original strain of covid, for example, it both stopped symptoms **and** stopped the spread.
The new variants however (such as delta, the most prevalent one, and omicron) it is either completely in effective or significantly less effective (hard to draw firm conclusions off what studies we have). The point is, its not effective at stopping the spread because the spike protein it encodes for is different in the variants and thus the antibodies are ineffective to a significant degree (if not completely).
@freemo @khaosgrille Ah ok thanks, that clears a few things up.
I still think it is worth wearing a mask most of the time anyway, esp in crowded places such as shops etc.
yea masks im not sure about. The data in them are questionable in either direction so we can only speculate about how or if they are effective.
I think if you are very strict in how you use them they probably help, but most people, almost no one, handles mask with the level of rigor needed for them to be effective.
I disagree, though again this is speculation. Given the habits most people have while using a mask I'd argue in most cases the act of wearing a mask probably increases the spread of the virus.
Using hand sanitizer and breathing through your nose is probably a more effective combo then using a mask imo