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Covid : Infection rates v death rates and a possible second wave

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trebor79

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I think it was a panic measure because we had utterly screwed up things we needed to do - protecting care homes and the NHS, track and trace etc.
Agree. It was clear even at the time that very little if any effort had been put into understanding the situation, what sensible efforts might be needed to mitigate and making those preparations. I'm not sure anything was screwed up though, more just nothing had been done.
Then Prof Ferguson wheeled out his Excel spreadsheets based upon incorrect assumptions...
 
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Bletchleyite

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More testing is definitely having an effect, there is no doubt about that. But if more testing is the only explanation for why people are hospitalised, then that means an absolutely massive number of people had the virus back in March/April. If that is true then many millions were exposed and did not get ill. Of course, we know that in the early days only seriously ill patients were tested, so no-one is doubting several million were exposed to the virus, but if this was the main reason, that number would have to be even bigger than anyone is estimating. Antibody studies have suggested only a relatively small proportion of the population were exposed, but we now know that T-cells play an important role; so that does make it possible that a large proportion of the population were exposed to the virus. Still, I don't think this alone can explain it, though it is likely to be the biggest factor.

I think this is probably it - reported cases peaked at just under 5000 but we were at that point pretty much only testing serious cases i.e. those in hospital. I would bet that if we had community testing then the figure would have been 20,000+ per day. It will be killing fewer now for the reasons you outline, but I think also most cases weren't being detected back then, and T-cell immunity is also meaning people are testing negative for antibodies when they've had it (I'm near-certain I did in early March but I tested negative for antibodies).
 

Meerkat

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I think it was a panic measure because we had utterly screwed up things we needed to do - protecting care homes and the NHS, track and trace etc.
It was a necessary panic measure, and one that most countries took. There is a hell of a lot of hindsight going on here!
 

Bletchleyite

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It was a necessary panic measure, and one that most countries took. There is a hell of a lot of hindsight going on here!

For the record I'm not against having done it in the situation when we did it - but if we had done other things properly it would not have been necessary (as Sweden found). It was a "reset button" to undo a load of initial mistakes.
 

Richard Scott

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It was a necessary panic measure, and one that most countries took. There is a hell of a lot of hindsight going on here!
It was a panic measure, the debate is was it necessary.
 

yorkie

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It was a necessary panic measure, and one that most countries took. There is a hell of a lot of hindsight going on here!
I disagree with you that it was necessary but we've done this discussion to death in other threads so I am not going to have that discussion again. Let's stick to the infection rates vs death rates debate.
 

Meerkat

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I think this is probably it - reported cases peaked at just under 5000 but we were at that point pretty much only testing serious cases i.e. those in hospital. I would bet that if we had community testing then the figure would have been 20,000+ per day. It will be killing fewer now for the reasons you outline, but I think also most cases weren't being detected back then, and T-cell immunity is also meaning people are testing negative for antibodies when they've had it (I'm near-certain I did in early March but I tested negative for antibodies).
They reckon cases were up to 100,000 a day when the panic button was hit.
but that’s still not ‘loads of us have had it’ in a population of 70m
 

yorkie

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I think this is probably it - reported cases peaked at just under 5000 but we were at that point pretty much only testing serious cases i.e. those in hospital. I would bet that if we had community testing then the figure would have been 20,000+ per day. It will be killing fewer now for the reasons you outline, but I think also most cases weren't being detected back then, and T-cell immunity is also meaning people are testing negative for antibodies when they've had it (I'm near-certain I did in early March but I tested negative for antibodies).
It must have been a LOT more than 20,000+ per day for it to make sense. Otherwise, I agree with you.
 

Richard Scott

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They reckon cases were up to 100,000 a day when the panic button was hit.
but that’s still not ‘loads of us have had it’ in a population of 70m
But may well be enough including those people who have T cell immunity to prevent a second wave.
 

bramling

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Agree. It was clear even at the time that very little if any effort had been put into understanding the situation, what sensible efforts might be needed to mitigate and making those preparations. I'm not sure anything was screwed up though, more just nothing had been done.
Then Prof Ferguson wheeled out his Excel spreadsheets based upon incorrect assumptions...

Yes it seems things were allowed to degenerate into a state where the general view point was “for goodness sake lock down”, which when looking back does seem to have arisen as a result of essentially *nothing* effective having been done in the first two and a half months of the year.

The big mistake appears to have been failing to implement any useful form of shielding, especially in settings like care homes.
 

DelW

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I think Yorkie's second point in post 118 is a major factor:
Could it be the case that comparatively few younger people were infected earlier in the pandemic, and now it is the case that it is mostly younger people getting it? I don't doubt there is at least some truth in this; it's likely the proportions to which different age groups have been exposed to the virus has changed over time, but perhaps not to the extent some people are claiming? Surely this factor alone could possibly explain what we are seeing; bear in mind only seriously ill hospitalised patients could get a test early on, so most young people would not have been able to get a test even if they felt quite ill.
I'm in my sixties, so still being quite cautious, but I have started some socialising with friends again. However I think younger generations have returned to normal social life much more quickly. I was out and about in London on bank holiday Monday, and most of those I saw on the streets and in pubs and restaurants were under-30s, often in groups of up to half a dozen with no social distancing. I could well imagine that the virus might circulate quite widely in such groups, but being basically strong and healthy they're unlikely to need hospitalisation for it in most cases.

Personally I think this must be the most likely reason for hospitalisation and death rates not reflecting infection rates. Overall I'd hope that this is a good thing, as it may be gradually improving immunity levels.
 

Class 33

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Just seen today's stats, and nearly had a heart attack at what I saw. Only TWO deaths which is good. But the real shock was seeing the number of new cases has shot right up to 2,988. What the.....???? This is quite worrying. I expect the press and media will soon be making a fuss of this high figure today, and the government could even take drastic action in response to this. A second national lockdown? I bloody hope not.

Am really hoping the number of new cases takes a sharp nose dive DOWN tomorrow.
 
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Huntergreed

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Just seen today's stats, and nearly had a heart attack at what I saw. Only TWO deaths which is good. But the real shock was seeing the number of new cases has shot right up to 2,988. What the.....???? This is quite worrying. I expect the press and media will soon be making a fuss of this high figure today, and the government could even take drastic action in response to this.
You can bet there'll be headlines 'NEW CASES ALMOST DOUBLE OVERNIGHT AS SECOND LOCKDOWN IMMINENT', be interesting to see if there's a reason for this and if there'll be any restrictions put in place due to this (hopefully not)
 

trebor79

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Just seen today's stats, and nearly had a heart attack at what I saw. Only TWO deaths which is good. But the real shock was seeing the number of new cases has shot right up to 2,988. What the.....???? This is quite worrying. I expect the press and media will soon be making a fuss of this high figure today, and the government could even take drastic action in response to this. A second national lockdown? I bloody hope not.
And yet hospital admissions remains static at 124 (which in itself is inflated by about 50 as Wales includes "suspected" cases in that number), and the number of patients in hospital is also static.
 

Richard Scott

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Just seen today's stats, and nearly had a heart attack at what I saw. Only TWO deaths which is good. But the real shock was seeing the number of new cases has shot right up to 2,988. What the.....???? This is quite worrying. I expect the press and media will soon be making a fuss of this high figure today, and the government could even take drastic action in response to this. A second national lockdown? I bloody hope not.

Am really hoping the number of new cases takes a sharp nose dive DOWN tomorrow.
I bet almost all these cases are in younger people, in reality this is good news as more that have it closer we get to herd immunity but no way politicians or press will see it that way. Expect they'll blame schools going back and this is start of second wave. Doom mongers will love it.
 

yorkie

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Just seen today's stats, and nearly had a heart attack at what I saw. Only TWO deaths which is good. But the real shock was seeing the number of new cases has shot right up to 2,988. What the.....???? This is quite worrying. I expect the press and media will soon be making a fuss of this high figure today, and the government could even take drastic action in response to this. A second national lockdown? I bloody hope not.

Am really hoping the number of new cases takes a sharp nose dive DOWN tomorrow.
I'm guessing you've not read the last couple of pages of this thread?

I note France had a similar number of positive tests on 2nd of August (2,820), and 5 weeks later the number of deaths is still low (they recorded 18 deaths on Friday).

The true number of infections will be much higher than the detected number of cases; most people appear to be asymptomatic, which all suggests that the vast majority of the population have nothing to worry about.

We don't lock down society for a bad 'flu year, so we should not be locking down for this.
 
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adc82140

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If you break it down by day of sample instead, it seems that there has been some sort of catch up today, as those figures over the past week seem to be flat, but days when lower figures were quoted have risen to approximately match the rest.

Have they found a batch of tests that fell down behind the sideboard?

There will be no national lockdown. France is recording 9000 new infections a day and has ruled out such action. There will be no local lockdown either as such a thing doesn't exist, just restrictions on certain activities in certain areas.

Even Sky News are playing it down


Comparisons between recent and past cases should be made with caution.

The number of confirmed cases is heavily dependent on how many people and who is tested.
 

Dent

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There has been quite a lot of talk about increasing testing recently, I wonder if any of that has kicked in now. We won't know until Thursday when they update the daily numbers of tests processed.
 

adc82140

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I've been staying in a hotel for work this week that overlooks a big drive in test centre. Previously I've never actually seen any cars in there, and the staff have just been hanging around, but yesterday there was a steady stream of cars through.
 

Meerkat

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I note France had a similar number of positive tests on 2nd of August (2,820), and 5 weeks later the number of deaths is still low (they recorded 18 deaths on Friday).
If the increase is amongst the young then there will be a delay before it reaches the more shielded vulnerable people, and a delay before they start dying.
i believe the French have seen a delayed rise in hospitalisations rise haven’t they?
I understand where you are coming from, but I am concerned about how little we know. If we let infections get really high and then suddenly found that deaths were getting too high the only way to get the genie back in the bottle is a massive lockdown - so let’s open the tap slowly and take advantage of being behind the French etc and therefore able to watch what happens there.
 

Halish Railway

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Quite annoyingly the number of tests hasn’t been updated on the COVID dashboard for a few days so it’s impossible to calculate a positivity rate. There have been reports that there has been a rise in demand for tests, a factor that could explain the rise in cases.
 

DB

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If we let infections get really high and then suddenly found that deaths were getting too high the only way to get the genie back in the bottle is a massive lockdown - so let’s open the tap slowly and take advantage of being behind the French etc and therefore able to watch what happens there.

Why do some people now take it as a given that lockdowns are effective in reducing infection rates? There is actually very little evidence that they are, and all of the worst-affected european countries have tried this approach, some to quite a drastic level (e.g Spain) with no obvious success.
 

Dent

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Quite annoyingly the number of tests hasn’t been updated on the COVID dashboard for a few days so it’s impossible to calculate a positivity rate. There have been reports that there has been a rise in demand for tests, a factor that could explain the rise in cases.

For the last few weeks they have been updating the daily numbers of tests every Thursday. I don't know why there's such a delay now, it used to be updated every day.
 

adc82140

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If they are shielded how is it supposed to reach them?
Who'd have thought it? The original plan to shield the vulnerable may have been the best one, without trashing the economy. But "U turn Boris" was scared witless by Neil Ferguson.
 

Meerkat

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Why do some people now take it as a given that lockdowns are effective in reducing infection rates? There is actually very little evidence that they are, and all of the worst-affected european countries have tried this approach, some to quite a drastic level (e.g Spain) with no obvious success.
Are you saying that lockdowns didn’t squash the runaway infection rates, when people were dying in their thousands in care homes etc?
If they are shielded how is it supposed to reach them?
I said “more shielded”. My dad isn’t shielding (he goes local shopping, my sister and I go into his house, etc) but he doesn’t do any social events, lectures, supermarket shopping, pubs, bus/train trips etc
Who'd have thought it? The original plan to shield the vulnerable may have been the best one, without trashing the economy. But "U turn Boris" was scared witless by Neil Ferguson.
As I remember it most of the press and growing public opinion was saying that lockdown was too late, as almost everyone else was in one. But for that I reckon Boris would have questioned Ferguson’s stuff more and looked for more opinions.
 

DB

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Are you saying that lockdowns didn’t squash the runaway infection rates, when people were dying in their thousands in care homes etc?

Sweden made the same mistake with care homes as this country, but had no lockdown. Despite this, their per capita death rate was still lower.

This strongly suggests that lockdowns have little effect on infection rates, and even if they slow it slightly (IF they actually do) so what? That just means it takes a bit longer to spread, which it will do eventually whatever.
 

Meerkat

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Sweden made the same mistake with care homes as this country, but had no lockdown. Despite this, their per capita death rate was still lower.

This strongly suggests that lockdowns have little effect on infection rates, and even if they slow it slightly (IF they actually do) so what? That just means it takes a bit longer to spread, which it will do eventually whatever.
How did Sweden’s death rate compare to neighbouring countries?
If it wasn’t lockdown what did stop the infection rates exploding across Europe?
 

jtuk

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Are you saying that lockdowns didn’t squash the runaway infection rates, when people were dying in their thousands in care homes etc?

It has been posted ad infinitum here that the infection rate was already going down (i.e. R<1) before we locked down, so no, they didn't. I'll just refer you to the R rate section of evidencenotfear
 
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