THREAD on new tiers & some perspective:

Lots of discussion over fairness of tier allocation and "balance" between economy and lives.

Let's remember where we were a few months ago...
Over the summer we were average about 10 new cases / 100K people / week. Quarantine from foreign destinations was triggered if they were above 20/100K cases. The *lowest* area in mainland England right now is at 59/100K (Cornwall). Almost everywhere is over 100/100K.
The rule of 6 was brought in across England on 14th September. Manchester went into tough restrictons on 16th Sept with case rate of 100/100K. From September to November the govt was trying to "balance" the economy and lives - against scientific advice to lockdown.
They tried all kinds of complicated measures designed to keep businesses open and covid in check. It didn't work.

The week to 14th September we had 75 deaths within 28 days of +ve covid test in England. In last 7 days it's 2,831.
The week to 14th September we had 18,635 cases. In the week to 5th Nov (lockdown2) we had 139,100. Hospital Covid occupancy is 80% of the April peak and admissions are still about 1000 a day.
So... cases and hospital admissions are now coming down which is excellent. BUT almost everywhere is still much higher than we were in mid Sept. It's not "fixed". The new tiers are trying to open some things while keeping things in right direction (DOWN).
This is hard! and it sucks. And if we had a better test, trace and isolate system it would be much easier. But we don't. And until we do, restrictions are necessary and they need to be tougher than pre lockdown because pre lockdown wasn't working!
the summary is that things got badly out of control in Sept & Oct, and we still have a long way to go... /END

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More from @chrischirp

16 Nov
THREAD: In this piece for @IanDunt 4 weeks ago, I wrote about the "relentless doubling" of Covid deaths in England & that any new measures would not prevent deaths over the coming 4 weeks because they would mostly be among people who already had Covid. politics.co.uk/comment-analys…
Given that relentless doubling of deaths, I wrote "It's likely 2,000 people will die over the next two weeks and 4,000 the two weeks after that.". Sadly, it was even worse. 2,553 died in the two weeks to 1st Nov & 4,328 have died over the last 2 weeks... (coronavirus.data.gov.uk/details/deaths)
A Sept 21st circuit break as recommended by SAGE could have prevented many of those deaths. I am v glad we started lockdown on 5th November but it was NOT soon enough to help the thousands who will die over the next 2 weeks. It also won't be as effective after missing half term.
Read 6 tweets
6 Nov
THREAD: quick look at how some European countries are doing & what we can learn from restrictions... NB there are general "work from home" advisories in all countries, but not clear how much people are. Slight differences in mixing rules. Thanks to @lmortshepherd for the charts!
1. Netherlands - cases went up rapidly from Sept & they tried regional curfews on bars & restaurants. These became national curfews but cases kept going up. Partial lockdown (schools + uni open) started mid October. 2 weeks later cases peaked and are now reducing. Image
2. France - Again cases started rising in Set and regional bar & restaurant closures were tried. Then national curfews. These were not stopping the spread and lockdown started a week ago - schools open. Today they had another record case day but early days. Image
Read 6 tweets
5 Nov
THREAD: on lockdowns, mitigation, herd immunity strategies. I have a *lot* of problems with this article by Lord Sumption in the Guardian today - so I've decided to do a thread on them. amp.theguardian.com/commentisfree/…
1. Just going to start by saying that no one thinks lockdowns are a good thing and everyone agrees they have serious & bad consequences. They are a last resort measure. I agree with Lord Sumption that they should be avoided if at all possible! But that is about all we agree on!
2. He starts off by saying "Suppose there is nothing that governments can do to stop the spread of Covid-19. What then?". That's his premise. But many countries have shown there ARE things you can do to stop spread. China, S Korea, Vietnam, Japan, Taiwan, Thailand, NZ, Uruguay...
Read 23 tweets
23 Oct
THREAD: where we are with covid in UK, particularly England, right now ... inc schools and circuit breaks... based on my @IndependentSage briefing today (which you can watch here if you want )
Confirmed UK cases still going steadily up - doubling every 2 weeks or so - faster end of Sept and bit slower last 2 weeks. Of course reliant on testing so take with pinch of salt.
Cases continuing to increase in England, NI and Wales. 2 weeks into central belt restirction in Scotland and we're seeing a flattening. Remember impact on cases takes at least a week to show in case numbers. Keep an eye on NI next week and Wales in two weeks...
Read 19 tweets
15 Oct
THREAD: personal thoughts on tiers, circuit breakers, restrictions, R (ENGLAND)

My calcs based on SAGE notes (bit.ly/3lTraqv) & SpiM paper on circuit breaker (bit.ly/2T0p6AA)

TLDR: 2 week circuit breaker NOW, then enough restrictions/FTTIS to keep R below 1
Cases are rising across England. SAGE estimate R i s1.2 -1.5 & not below 1.2 anywhere. Although North highest (1), everywhere rising. Plotting each region with start point at first week with over 20 cases/ 100K people/week shows that trajectories similar (2) - all on same course
All charts below assume simple exponential growth or decay (based on R) till end Nov. V v simple but illustrate point! I use hospital admissions as not dependent on testing. Back of envelope, don't take numbers literally.

Overall, doubling rate currently about 2 weeks (R=1.3).
Read 14 tweets
8 Oct
THREAD: My thoughts on pubs FWIW.

At current growth, covid hospital admissions in North of England less than a week away from levels London had on lockdown day in March (per population)
Covid loves us socialising indoors (pubs & homes) and laughing, chatting over a table for hours... I think right now closing indoor pub service in hard hit areas & restricting household mixing is right thing to do BUT we need to work immediately on plan to reopen inc
Fixing test & trace (e.g. in England, currently works least well where needed most). This inc supporting isolation - financially (£500/2 wks less than minimum wage!), practically (caring responsibilities, grocery, accommodation...) (govt SAGE said same bit.ly/2SBpfKP
Read 6 tweets

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