just because I'm Paranoid ...

[Snowwolflair]

I don't have a problem with the data collection and as mentioned above google maps etc are already doing this anyway.

I feel the problem will be the user as its relies on people using the app correctly. what is to stop people saying they have symptoms and creating false alerts?

Mine will be going off all the time with alerts as I work in a hospital 

Guess what, on the lunchtime news they have just said anyone working in a hospital should turn their phone off.  There is a genius at work somewhere 

[gavin_t]

I don't have a problem with the data collection and as mentioned above google maps etc are already doing this anyway.

I feel the problem will be the user as its relies on people using the app correctly. what is to stop people saying they have symptoms and creating false alerts?

Mine will be going off all the time with alerts as I work in a hospital 

Guess what, on the lunchtime news they have just said anyone working in a hospital should turn their phone off.  There is a genius at work somewhere 

Proper IT fix that one 

Although mine stays on my desk and not with me on the ward anyway. 
Let's see what comes out of the IOW trial.
I think the real game changer will be the antibody test if they can get a reliable one into circulation.

[GrahamB]

Thought this might be of interest.

https://www.wired.co.uk/article/nhs-covid-19-tracking-app-contact-tracing

[Mr Sprue]

Thought this might be of interest.

https://www.wired.co.uk/article/nhs-covid-19-tracking-app-contact-tracing

Thanks for posting this, it makes things a whole lot clearer! 

[zwilnik]

Thought this might be of interest.

https://www.wired.co.uk/article/nhs-covid-19-tracking-app-contact-tracing

And the less fluffy version...

https://www.theregister.co.uk/2020/05/05/uk_coronavirus_app/