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Covid

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Daily numbers, graphs, analysis thread 2

983 replies

Barracker · 29/03/2020 14:33

A follow on thread from here

Please try to keep it data driven, factual and civil. Flowers

www.worldometers.info/coronavirus/country/uk/

OP posts:
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67
chomalungma · 31/03/2020 23:13

Does anyone know just how accurate the nasal and throat swab tests are

What do you mean by accurate?

I can't find any reliable data for the sensitivity or specificity of the RT-PCR tests used to diagnose disease.

RNA from a virus is sensitive to degradation so that makes the test a bit harder.

You need to know the sensitivity and specificity to look at false positives and false negatives. - especially if you have a lot of people you are testing who don't have the disease.

mbio.asm.org/content/11/2/e00722-20

agteacht · 31/03/2020 23:17

This thread is really interesting. If we think peak is around 12th April but the downward trajectory is more gradual than the upward, presumably current lockdown lasts until at least May...?

Postspecific · 31/03/2020 23:59

Does anyone have any statistics on overlap? If approximately 1400 people die in the UK every day on a normal day - and given that the virus predominantly targets the elderly and ill - what degree of overlap are we looking at?

I heard a radio programme that deducted that the risk of a person dying from Covid-19 in the two weeks after they’ve contracted it is more or less equivalent to that same person’s probability of dying across that year. This will differ depending on age and illness.

givemeacall · 01/04/2020 00:07

This reply has been deleted

Message withdrawn at poster's request.

OldCrone · 01/04/2020 01:09

So that the thinking is that more people get it by being confined together but they get it mildly because they have been exposed to only one infected case ?

The advice is that if one person in a household shows symptoms, they are supposed to self-isolate within the house and try to interact with the other members of the household as little as possible in order to try to avoid infecting them.

www.ifh-homehygiene.org/sites/default/files/publications/30-3--20coronavirus%20advice-IFH%20%20.pdf

I think the reason for this is that if the infected person doesn't self-isolate the other members of their household will come into contact with a large number of virus particles from the infected person which is likely to give them a more severe illness than catching it by just getting a bit too close to someone in the street.

caringcarer · 01/04/2020 02:38

There was an artice in Daily Express today stating particles of Covid can be found in air after an infected person has for example passed through a doorway, 30 mins to an hour after they had left. If this is true and virus also airborn surely this means social distancing is not enough. Thanks to all who post daya and analysis.

peridito · 01/04/2020 06:54

OldCrone - sorry ,yes I realise the advice is for the self isolating person is designed to keep them well away from other household members .

But I think a lot of the recommended procedures eg using the bathroon on a rota and the sick person cleaning all the surfaces in that room after use etc won't be practical for many .

utterlybutterly8 · 01/04/2020 07:04

There was an artice in Daily Express today stating particles of Covid can be found in air after an infected person has for example passed through a doorway, 30 mins to an hour after they had left.

Yes - and this is days after the WHO declared that it wasn’t airborne. Who knows what to believe anymore.

itsgettingweird · 01/04/2020 07:42

Watching the interview now on GMB. We are fucked. The UK really isn't doing enough in some areas.
People coming off planes take 2 routes - symptomatic and not. They get to decide this. They have just got off a plane full of people so they could have spread it. No mandatory quarantine.
Promises of tests that aren't happening.

I want to see the numbers levelling off and following predictions. But I don't see how we are doing everything we can to do this?

Maybe I'm wrong?

midgebabe · 01/04/2020 07:45

I think there is a difference between being able to detect the presence of the virus and it actually being live and capable of infecting someone? It deteriorates rapidly I understand. Probably why the rate of infection isn't higher

midgebabe · 01/04/2020 07:47

Postspecifc, I think that is saying that the very frail and ill die quickly, but I think that many others are ill for longer before they succumb

midgebabe · 01/04/2020 07:49

Post Border crossing mandatory isolation seems a no brainier doesn't it?

NeurotrashWarrior · 01/04/2020 08:01

Local Hcps have told me that the peak is expected locally in mid May as we are lagging behind the country re infection rates.

So even if one area starts to flatten or drop, other areas may still be climbing.

So restrictions will be dependent on separate area data too I reckon.

DuLANGDuLANGDuLANG · 01/04/2020 08:02

I heard a radio programme that deducted that the risk of a person dying from Covid-19 in the two weeks after they’ve contracted it is more or less equivalent to that same person’s probability of dying across that year. This will differ depending on age and illness.

Yes. I’ve heard this a lot, usually from people who don’t want to abide by lockdown, ‘this virus isn’t a big deal, they were all going to die soon anyway!’.
(Not saying that’s you, btw, just people I know!)

It doesn’t really make sense when you look at the actual medical conditions in the ‘extremely vulnerable’ group though (ie, recipients of successful organ transplants are not expected to die within a year). Nor would we expect healthcare professionals to go from ‘well enough to work full time’ to seriously ill within weeks, sadly, even dead.

Supposedly the overlap will become apparent when the overall death rate for the time period does not rise. Obviously that would be great (not for the families) but we don’t know the true number of deaths yet, due to the mechanical extension of life.
Only when doctors start trying to get these patients off of ventilators after 2 or 3 weeks will we get an indication of the real picture.
The ICNARC report into the first 775 UK critical care patients states that 600 were still in critical care at the time of writing it. Of the resolved cases it was 52/48 % recover or die.

Perhaps right now there is loads of overlap.
We’re still very early days though.

DuLANGDuLANGDuLANG · 01/04/2020 08:03

At the very least I hope we learn to keep large stockpiles of the highest quality PPE in multiple regional sites. And to do frequent training exercises on how to use it.

Gfplux · 01/04/2020 08:40

Fecktheboss
Does anyone know just how accurate the nasal and throat swab tests are?
A poster on another thread said that 85% of people in hospital are testing negative but they must be showing symptoms to require hospital treatment.

We should be very careful to give oxygen to rumours. If on the other thread the poster can not give a proper source for this rumour then it should not be repeated on this or any other thread.

Gfplux · 01/04/2020 08:43

Try again
*Feck the boss
Does anyone know just how accurate the nasal and throat swab tests are?

A poster on another thread said that 85% of people in hospital are testing negative but they must be showing symptoms to require hospital treatment.*

Fartintheloft · 01/04/2020 08:47

Sorry I hit post by accident! This is really interesting. Sky agree with what we are saying, apart from they currently have it at 15 days.

Myfriendanxiety · 01/04/2020 08:55

If it were true that the older people dying with COVID—19 would have died fairly soon anyway- then how do you explain Germany? Lots of cases but a lot less deaths? They must surely have a better way of treating patients to prevent death?

Alwayscheerful · 01/04/2020 09:16

Germany's situation is unusual,the first infected patients were young, fit and healthy skiers , sadly the virus is now about to rip through the older population.

Fartintheloft · 01/04/2020 09:19

@Myfriendanxiety
Germany have done a LOT more testing. So their figures look a lot different.

Bluntness100 · 01/04/2020 09:21

A poster on another thread said that 85% of people in hospital are testing negative but they must be showing symptoms to require hospital treatment

Because the other eighty five percent have other respiratory illnesses, flu, pneumonia, bronchitis etc.

ChardonnaysPetDragon · 01/04/2020 09:30

At the very least I hope we learn to keep large stockpiles of the highest quality PPE in multiple regional sites. And to do frequent training exercises on how to use it.

No one can really stockpile enough for a pandemic this size. The we should do is be stock enough for the first weeks, and be ready to make the rest, but is this case the biggest manufacturer is China and they are of course putting their needs first.

It shows how we all put all or eggs in one basket.

ChardonnaysPetDragon · 01/04/2020 09:31

Sorry, this seems the work thread for this, I see how it needs to stay just for numbers.