@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.
If I had a smart phone and worked in a school then having the UK test and trace app would be worthless
Staff are not allowed to have phones in the classroom, none of the kids have one, so as a supply teaching assistant, if all the kids were infacted my smart phone would be stored in a school office safe, well away from proximity to other phones, so would not ping me for being in close contact.
wouldnt be too helpful even if they had phones. Kids are almost always asymptomatic so they never get flagged really.
Yes that true, Just saying even if it did work it wouldnt be helpful around kids that much anyway.