The big news about this NEJM piece is that it’s not really news, being consistent with what we already knew:

when schools are open teachers do not seem to face higher risks relative to other professions whilst school children seem to be at very low risk
nejm.org/doi/full/10.10…
To that we can add that the suggestion keeping schools shut is an effective strategy for reducing community transmission is based on evidence that is weak & conflicting.

E.g. see this German study for a counter-example.
cream-migration.org/publ_uploads/C…
In contrast, we know with some certainty that the costs of school closures to education, to child well-being & to the economy are enormously high & affect disadvantaged children most.

e.g voxeu.org/article/long-t… & also this by my colleague @ProfETownsend acamh.onlinelibrary.wiley.com/doi/10.1111/ca…
To its credit, the Govt previously recognised the case against shutting schools & rightly kept them open in the last lockdown. So why has @GavinWilliamson changed his mind now?
One issue was a fear that the new variant virus spread relatively fast in children compared to adults.

But now we hear there is “expert consensus that there is no evidence to suggest it spreads particularly more in children”
It is not good enough to shut schools on a hunch that it has suddenly become an effective strategy. Where is the actual evidence that the cost-benefit calculation has changed sufficiently to justify shutting schools?
Was the decision to shut schools partly due to intense pressure & lobbying from some members of SAGE, unions and the press?

If so, it was an act of political cowardice. But either way, the decision should be reversed as a matter of urgency. #usforthem

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More from @cricketwyvern

8 Jan
To expand: Tier 4 introduced in London & parts of SE/E on 19 Dec. In London, Zoe data increase which had been slowing down actually accelerated just when T4 should have had an effect before then turning down.
Also in quite a few hard-hit parts of Kent & Essex, positive tests started turning down around 22/23 Dec implying infections down about 15th before T4 & when schools open. They then increased just as T4 might have had an effect, & now look probably coming down again.
e.g. here are Southend & Medway:
Read 5 tweets
2 Jan
It is hard to overstate what a catastrophic failure the Govt & SAGE’s policy of continual restrictions & lockdown has been.

Not only has it caused economic devastation & misery for millions, it has not stopped high rates & surges in infections, hospitalisations & deaths.
Over the past 6 months, UK governments have tried mask mandates, curfews, local restrictions, regional restrictions, tiers, short *firebreaks*, national lockdowns, stricter tiers, extra tiers.

All have caused enormous costs yet look where we are at with Covid. Time to rethink.
“But it’s just obvious that lockdowns will work."

It’s past the time to indulge in wishful thinking about what you think *must* or *should* happen. Like it or not, we have to face reality: the continual lockdown/restriction cycle has failed on every possible measure.
Read 10 tweets
1 Jan
Of course I didn't say reducing social interactions does little or nothing to help. However, asking why shutting cafes, pubs etc might do little or nothing to help would have been a good question.
When cafes already have strict Covid measures in place, shutting them completely is unlikely to have anything other than a small marginal benefit. But if closure drives social interactions into other locations, there may be no benefit at all & it could even make things worse.
As we have seen, opening pubs in July did not lead to a big surge in cases whilst shutting them in Nov did nothing to stop the big surge in cases that started during the last lockdown.
Read 4 tweets
30 Dec 20
Given much of the country has been under drastic restrictions continuously since 5 Nov (in some cases earlier) @BorisJohnson will have imposed an effective lockdown of 5+ months ...
5+ months during which it will have been a criminal offence for you to invite your elderly neighbour into your house (or even garden) for a drink or just a chat

and when tens of thousands of pubs, cafes, restaurants & others are being banned from operating their businesses.
5+ months of it being a criminal offence for someone to sit in a cafe having a cup of tea

and for parents to hold a birthday party for their 6-year old with kids who mix together every day at school

and for millions of young people to meet anywhere indoors with even 1 friend.
Read 4 tweets
29 Dec 20
This is not a good take:

53k is high but does not indicate a surge in itself. Rather the big number seems largely due to Christmas reporting, both delays & Christmas effect (people getting tested in days after Christmas rather than on the 25th).
If you look by specimen date, 7-day ave of positive tests went down on 24 & 25 Dec & then up in days after. Data still incomplete for more recent days, so we don't know yet what is the net effect.
Zoe App data suggests infections still going up until 25th Dec but the rate of increase slowing. It may turn out that cases started to go up faster again from 26th Dec, but we don't know that from the data yet.
Read 5 tweets
29 Dec 20
Post-Christmas update to English hospital deaths. Headline reported total 365.

5-day reporting total is down from 293 to 235 (for 24 Dec) but Christmas reporting means it may not give a like-for-like comparison as there is probably more backdating to come than usual.
And here is the trend in the 5-day reporting total for the past month. 7-day average is down a bit up to 24 Dec but likely due to slower reporting than normal over Christmas.
And here are the regional trends for English hospital deaths for the last month using the 5-day reporting totals (up to 24 Dec). Again, falls in most recent days may be probably explained by Christmas reporting ...
Read 4 tweets

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