Benedict Barclay Profile picture
Oct 15, 2021 6 tweets 3 min read Read on X
The idea that the UK is seeing more Covid cases than other Western European countries because it is testing more is one that refuses to die. I know it's often made in bad faith, but anyway...

First, positive rates are low in most of those countries, e.g. Spain/France.

1/6
So yes, they're testing less, but because they have fewer people with symptoms, fewer contacts, etc. If they had high rates of cases with low testing, the positive rate would be high.

In terms of cases, we can see how UK diverged from rest of Western Europe over Aug/Sept.

2/6
After cases, you get to hospital admissions. Here I've moved forward a week, to allow for a bit of delay between testing positive and being admitted to hospital.

Spain and France, which were high for cases, also start high for hospital admissions, but gradually fall.

3/6
Next deaths, moving another week forward in time (probably not quite enough). Anyway, same pattern, with France and Spain starting high and falling.

4/6
Ah, but excess mortality is the best measure, I hear someone say. Yes, but it's also not as up to date, and so there's a lag in addition to the lag for getting from cases to deaths. Nevertheless, looking at the latest data, a pattern emerges...

5/6
Over coming months, we'll see that excess mortality has been higher in the UK than in these other countries in October. Meanwhile, it's pretty clear that although there are differences in testing, criteria for hospital admission and even counting deaths, UK is an outlier.

END

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More from @BarclayBenedict

Mar 30, 2023
Another quick update on Covid in Denmark. Cases and hospital admissions still rising, and first signs of an increase in ICU admissions, although numbers are so small that it could just be noise.

Hospital admissions now 2.5x what they were 4 weeks ago.

🧵
Wastewater surveillance suggests that cases are still rising quite strongly.

2/
The majority of hospital admissions are in the 70-89 age group, but all age groups from 50-90+ have seen a significant increase.

Incidence is highest in those age groups, but that mainly reflects the fact that there's not much testing outside healthcare settings.

3/
Read 5 tweets
Mar 9, 2023
The Danish RSV season is all over bar the shouting.

The conclusion?

It's been a pretty exceptional season, to say the least.

And not in a good way.

🧵
First cases/incidence.

I won't dwell too much on them, because they depend a lot on testing, which mainly takes place in conjunction with hospitalization.

It's clear the last couple of seasons have seen a lot more cases than in the past.

2/
There has been a bit more testing this year.

But peak positivity has also been higher during the past couple of seasons, so I think the number of cases has genuinely been high.

3/
Read 15 tweets
Jan 19, 2023
Another week, another #EuroMOMO update.

And excess deaths are again very high.

🧵
For all ages, the estimated number of deaths in week 51 is now just above the peak of the Alpha wave in early 2021.

2/ Image
Excess deaths in the 0-14 age band remain near record levels (and higher than at any time earlier in the pandemic).

In this week's report, the 15-44 age band also reached a new high for the pandemic.

3/ Image
Read 5 tweets
Jan 8, 2023
I can't find it now, but someone recently responded to one of my posts on Covid deaths in Denmark with this graph.

Implication: look, in the grand scheme of things, deaths aren't that high now.

But this is where the of/with argument works in reverse.

1/
Because of less testing, and other changes to how data is presented, most "with" deaths don't get counted these days.

During that big peak last year they did. If you look at just "of" deaths (the red ones on this graph) last year's peak shrinks significantly.

2/
This year, 85 of 94 Covid deaths in the most recent week were "of" Covid.

Last year it was 181 of 293 in the very highest week.

As this year's figure will be revised up, and we're probably not at the peak, this year will end up over half of last year's number.

3/
Read 5 tweets
Jan 4, 2023
I've finally had time to do a new Substack post.

Inspired by the breakthrough achieved by the Lawrence Livermore National Laboratory, it's on #fusion power.

And particularly how that relates to the energy transition and achieving net zero.

🧵

thegreentransition.substack.com/p/fusion-power
When discussing breakthroughs in fusion power, it is worth remembering the running joke that “it’s the energy source of the future—always has been, always will be”.

Promising unlimited energy and delivering it are two different things.

2/
First, what is the difference between fission and fusion?

In nuclear fission (the technology used at all existing nuclear power plants), big atoms release energy when they split into smaller fragments.

3/
Read 16 tweets
Nov 28, 2022
I've done a quick graph to show what's happening with Danish hospital admissions for RSV.

Each bar is a cohort, defined by the RSV season when they were 0-12 months old. So the left-hand bar shows hospital admissions for <1s in 2015/16 (blue), 1-2s in 16/17 (orange), etc.

1/3
The cohort that "missed out" on being exposed to RSV in 2020/21 was admitted to hospital in higher numbers than usual aged 12-24 months (orange), but that mainly reflected the size of the wave in 2021/22. Their *proportion* of admissions wasn't much higher than normal.

2/3
Overall, in the first three years of their lives, they have been much less likely to be hospitalized from RSV than a normal cohort.

The cohorts being admitted in large numbers are the 2021/22 and 2022/23 ones. Remember their bars will continue growing (particularly 22/23).

3/3
Read 5 tweets

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