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The contact-tracing...
 

[Closed] The contact-tracing app, accuracy?

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I'll use my phone the way I want to use it, thanks all the same. Given that the entry requirement to my drinking establishment is to have the app active and scan in before getting a seat, there's no danger of me forgetting.

– but I might stop to help someone who’s lost when I’m on a walk, or countless other scenarios where I end up in relatively close proximity to others for a period of time unpredictably, and where I wouldn’t have their contact details

The point, which seems to have evaded some is to alter your behaviour; you've had 8 months worth of time to practice. The app isn't magic, so actively avoid spending time in relatively close proximity to others instead of relying on some gadget.


 
Posted : 28/09/2020 1:13 pm
 Del
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Crikey, use it how it makes sense in your case. It sounds like you're being pretty reasonable. At least you've installed and are using the app. My phone will go 2 days, roughly, between charges with everything including Bluetooth switched on anyway, so the power consumption of this app is in the noise for me.

Interestingly, out of 3 of us in our office today I'm the only one to have installed it. One older guy who'd heard it munches your battery, and the other who was worried about being required to isolate unnecessarily. They're both smart people. It worries me a bit they haven't looked in to it further.


 
Posted : 28/09/2020 1:33 pm
 poly
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The point, which seems to have evaded some is to alter your behaviour; you’ve had 8 months worth of time to practice. The app isn’t magic, so actively avoid spending time in relatively close proximity to others instead of relying on some gadget.

I have which is why I've not been in a pub or cafe since March. On the other hand, if I see someone in trouble on the hills, woods, or roads I'm not going to ignore them because of a theoretical covid risk.

But hey, I'm not the one calling others simpletons!


 
Posted : 28/09/2020 1:41 pm
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Interestingly, out of 3 of us in our office today I’m the only one to have installed it. One older guy who’d heard it munches your battery, and the other who was worried about being required to isolate unnecessarily. They’re both smart people. It worries me a bit they haven’t looked in to it further.

The thing is even in a non covid world many won't / don't bother to do any further reading if they did I think our gov' would be a lot better hands. The isolation thing I think is a real concern especially for those who need to be in a place of work to do their job - especially when you got handcock saying oh if you gotta isolate you can just collect standard sick pay which wont be paying anything more than a phone bill.


 
Posted : 28/09/2020 1:58 pm
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For the sake of national harmony and in light of the current situation, I hereby formally withdraw my simpleton insult. I think we're all dealing with this in our own ways; given the lack of sensible guidance it seems that's all we can do.

I am actively avoiding any crowded places; I have developed a very low tolerance for other people but, as you have said, nor would I avoid helping.

I'm off out now and will use the app as soon as I stop.

🙂


 
Posted : 28/09/2020 2:00 pm
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I've downloaded it but struggling to get it to work? It say 'Contact tracing is off' but I can't seem to turn it on. Bluetooth is on. Button at bottom saying 'Contact tracing' won't flip to on (assuming on is to the left).

iPhone 7 running 14.0.1


 
Posted : 28/09/2020 2:03 pm
 Del
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The isolation thing I think is a real concern

I'm not saying it isn't. Though for both of those in my office it won't be that big a deal, and apparently it's not a big deal for jamze's friend either, but here we are. Again, the government has done a great job of destroying confidence and trust.


 
Posted : 28/09/2020 2:07 pm
 Del
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Dogbone, suggest you uninstall, reinstall.


 
Posted : 28/09/2020 2:09 pm
 loum
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I don't need the app, I've already got decent antivirus on my phone.


 
Posted : 28/09/2020 2:15 pm
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Thanks Del. Now working.


 
Posted : 28/09/2020 2:28 pm
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Cougar, afraid so if I’m reading it correctly.
...
App tells you to isolate, get negative test, continue to isolate.

That's insane.


 
Posted : 28/09/2020 3:20 pm
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App tells you to isolate, get negative test, continue to isolate.

Which I suspect is why a good few people won't be downloading the app...


 
Posted : 28/09/2020 3:24 pm
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Again, I see no reason to have the app running in my house.

Your partner gets flagged as at risk by the app, because you're not running it at home it breaks the chain between you and her so everyone you've been in contact with who should be notified isn't.

I do it to avoid having to charge my phone as often.

The technology used is BLE - Bluetooth Low Energy. Lighting up your screen multiple times a day to turn the app on and off probably uses more power than if you were to just leave it on and leave your phone dark.

Does your phone battery not last the day? Is plugging it in before you go to bed far less hassle than buggering about in application settings every ten minutes? (I mean, there's a risk you might forget, but surely only a simpleton would do that...)


 
Posted : 28/09/2020 3:33 pm
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App tells you to isolate, get negative test, continue to isolate.

That’s insane.

Maybe not.

Let's say 'Bob' has a positive test result and the app tells the 6 people he's been in close contact with to self-isolate. One of those contacts (let's call him 'Cougar') has a a chance (let's say 30%) of having caught coronavirus from Bob. The app tells Cougar to stay home so he doesn't infect anyone else. If it didn't do that, the r-value for Bob would be two (30% x 6 contacts).

The app doesn't tell Cougar's contacts to self-isolate. He's only got a 30% chance of having the virus, so his contacts only have a 10% chance of being infected - so it would be too strict to get them staying home too.

We want Cougar to get tested so that if he does definitely have the virus we can tell his contacts to self-isolate.

However the test doesn't pick up Coronavirus while it's incubating - so Cougar's negative test is just as likely to mean (for Cougar) that he's still developing enough viral load to be detected as it is to mean he's not been infected. So unfortunately for Cougar he has to stay in until the 14 days are up (if he remains symptom-free).


 
Posted : 28/09/2020 3:38 pm
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Good thinking. It is, I guess, all just a numbers game.

I’d be tipping off the school, frankly. First positive case just reported at my lads college, teacher who was warned by track and trace about a social contact, absolutely vital that staff do all they can to identify if they are putting others at risk.

My partner works in a school. They've been explicitly told that they cannot have the app running whilst at work.


 
Posted : 28/09/2020 5:35 pm
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meh.

Mrs C doesn't have the app, has no interest in having the app and her lifestyle is such that she probably doesn't need the app because she can't catch anything from a sewing machine to which I am a widower.

I really don't need to justify the way I use my phone to anyone so you can all kindly jeff off.

I've turned it on once today and now I'm home I've turned it off again.

I can tell you all that I've met 2 people for a time greater than 15 minutes all day because I'm an antisocial ****er who regards most people in a less than positive light.

I'm using it in a sensible and limited way that corresponds with my lifestyle and is as effective as leaving it on all the time, without leaving it on all the time.


 
Posted : 28/09/2020 7:32 pm
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I really don’t need to justify the way I use my phone to anyone

No, but if you're doing it to save battery it's likely to be having the opposite effect. Which is rather a silly thing to do.

If you're doing it just to be contrary then fill your boots, I couldn't care less.


 
Posted : 28/09/2020 7:41 pm
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but if you’re doing it to save battery it’s likely to be having the opposite effect

As noted above, I've turned it on once and off once.

Much though I appreciate your concern, it's really nothing to do with you.


 
Posted : 28/09/2020 7:46 pm
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It's all getting a bit


 
Posted : 28/09/2020 8:18 pm
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because I’m an antisocial **** who regards most people in a less than positive light.

Evidently.


 
Posted : 28/09/2020 8:39 pm
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30 odd years of public service tends to leave its mark.


 
Posted : 28/09/2020 8:42 pm
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Anyone any idea what happens if your Employer installs this on a work phone and you already have it on your own personal phone ? i.e. you'd be running two instances of it which will see each other as contacts ?


 
Posted : 29/09/2020 2:56 pm
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My partner works in a school. They’ve been explicitly told that they cannot have the app running whilst at work.

Trying to work out the logic of this 🤔

Anyone any idea what happens if your Employer installs this on a work phone and you already have it on your own personal phone ? i.e. you’d be running two instances of it which will see each other as contacts ?

Well in theory if you were notified as being in contact with someone who is positive, or you tested positive and put the result into one of the phones, the other phone should notify you too.


 
Posted : 29/09/2020 3:12 pm
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Trying to work out the logic of this 🤔

I think it's mostly that the head teacher is a control freak. Logic does not often feature strongly in her (many) staff mandates.


 
Posted : 29/09/2020 3:24 pm
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No concerns like that at all; I do it to avoid having to charge my phone as often. I switch WiFi off, and mobile data, and location unless I need them. Bit like turning the telly off when I go to bed.

My 6S battery is so bad now my phone goes on Flight Mode whenever I leave the house for more than an hour as otherwise it just drains the battery flat whilst I'm out (I assume mainly through base station handovers as I always kill all the apps when I've finished using them).

Getting a new battery has been on my ToDo list for some time.....


 
Posted : 29/09/2020 3:45 pm
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Getting a new battery has been on my ToDo list for some time…..

For the cost of it, why not upgrade to a 7? By the time you have sold your 6S and bought a decent 7 I would have said the costs would be similar and a good 7 (with, say, 90% battery health) will last much longer than a 6S with a brand new battery.


 
Posted : 29/09/2020 4:12 pm
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https://www.bbc.com/news/technology-54328644

Sounds like you need to get onto this lot as well lads.


 
Posted : 29/09/2020 7:45 pm
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So, had the App running on my phone since it was launched. Got an alert this evening saying something like I might be at risk. So you click on the alert (iPhone) and it takes you to the App. Then nothing. Literally nothing. Not when, where or for how long. So I’ve absolutely no information on which to react.

Sorry if this has been covered earlier but how completely useless. My inclination is to ignore as I have no way of quantifying the risk. I don’t expect names and mugshots but something would be helpful.


 
Posted : 30/09/2020 11:00 pm
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The protect.scot app now has a "Pause" facility for use if working whilst wearing full PPE, behind a perspex screen etc.


 
Posted : 01/10/2020 12:16 am
 RicB
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wearing full PPE, behind a perspex screen etc.

This is what’s concerning NHS staff- the app doesn’t know when you’re wearing PPE, so if I’m on ICU next to a C+Ve patient I’ll be flagged as a contact. Not sure I’ll remember to turn the app on and off for each shift...


 
Posted : 01/10/2020 11:55 am
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Do patients in ICU have mobile phones with them and, if so, would it not be sensible for them to have the app disabled?

I've not tried the Pause function but there is an option to set a reminder when you use it.


 
Posted : 01/10/2020 11:59 am
 RicB
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Some might, other staff (also wearing PPE) definitely will. I just used an ICU patient as an example but we have C+ve patients on all types of ward and because visiting is now blocked they all have phones as it’s the only way to communicate with rellies


 
Posted : 01/10/2020 12:20 pm
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I've had the app running all day since the day of launch. This morning I opened the app to surprisingly find out I have to self isolate for 'another 8 days'? Yet a no point was I informed that I need to self isolate at all.

I work from home, the only contact with the outside world is indirectly via my kids and their school. So I'm not sure how and when I've come into contact with anyone and I'm certainly not sure why I've been instructed to isolate via a count down only and no other form of notification.

For the last six days I had no idea I should be self isolating (as should my wife and kids) and I that I have potentially been in contact with the virus.

In order to establish the facts the only way I can see forward is to book a test (taking up precious resources) Luckily I've managed to book a test this for afternoon. Whatever the outcome I can establish some facts and respond accordingly based on facts (entering the results into the app), and not due a potential bug in the app that might have randomly determined that I should self isolate for no reason at all.


 
Posted : 01/10/2020 12:36 pm
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The NHS Trust here has simply told the staff to switch the app off while at work. I'm not sure if that applies to visitors/relatives


 
Posted : 01/10/2020 1:12 pm
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I’ve had the app running all day since the day of launch. This morning I opened the app to surprisingly find out I have to self isolate for ‘another 8 days’? Yet a no point was I informed that I need to self isolate at all.

What would be useful is an 'all events' or 'all notifications' screen just in case you swipe one away by accident. Good luck with the test.


 
Posted : 01/10/2020 1:34 pm
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anyone know why the app doesnt let you see the quantity of contacts it has registered.

so for example, last night there was a group of six in the pub, three have the app... it would be reassuring if when they went home, they were able to see how many contact points had been registered, three would indicate just within the group, four would mean that despite social distancing an app from another group made contact.....


 
Posted : 03/10/2020 11:58 am
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anyone know why the app doesnt let you see the quantity of contacts it has registered.

I found a screen where it listed the times of scans it had done, and no of contacts but frustratingly can't find it now. On Android.

I can only think I tapped a notification from the app and it took me there. For a while, I had a persistent notification saying it was scanning. That's now gone.


 
Posted : 03/10/2020 1:11 pm
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I found a screen where it listed the times of scans it had done, and no of contacts but frustratingly can’t find it now. On Android.

Maybe its here:
On the opening screen go to About this app.
Then down to Manage my data.

All the venues you logged into are there.


 
Posted : 03/10/2020 1:20 pm
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Maybe its here:...

The screen I found was different - it actually had a list of scans with timestamps with some other info.


 
Posted : 03/10/2020 1:26 pm
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The screen I found was different – it actually had a list of scans with timestamps with some other info.

Sounds like a bug.

In the context of the app a list of contacts is irrelevant to the user. They are just inputs into the algorithm which is what ultimately decides.

In my opinion of course.


 
Posted : 03/10/2020 1:43 pm
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I found a screen where it listed the times of scans it had done, and no of contacts but frustratingly can’t find it now. On Android.

On Android here and I had noticed that too. It was basically a list of all the scans it had done and times. Can't find it on the app anymore now, but I did update it so perhaps its been removed?


 
Posted : 03/10/2020 2:46 pm
 Del
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it was in a notification i got when it told me i'd had the app running for 7 days, along with information on how to delete the data it is storing and some other stuff very generally about how the app works. not a bug as far as i'm aware as it was well presented.


 
Posted : 03/10/2020 3:09 pm
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On Android go to settings, then Google to find the list of scans over the last 14 days


 
Posted : 03/10/2020 3:41 pm
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I feel left out now.
Not that I've been anywhere really. The worrying thing is it shows me as having been in a pub on Monday from 11:45 to midnight. It doesn't take that long to drink a cup of coffee.


 
Posted : 03/10/2020 3:42 pm
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On Android go to settings, then Google to find the list of scans over the last 14 days

That's the screen, ta.

Some info here on false alerts. Seems the Google/Apple API sends alerts that you should ignore - only take notice of what the NHS app tells you.

https://www.bbc.co.uk/news/technology-54389083


 
Posted : 04/10/2020 1:23 pm
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