Adam Briggs Profile picture
11 Mar, 18 tweets, 12 min read
This week's PHE COVID surveillance report, covering 1-7th March (just before schools fully reopened)

Case rates, hospitalisations, deaths continue to fall.
But some really big variation by local authority.

And vaccination uptake is going great guns. 🧵

gov.uk/government/sta…
Case numbers and percentage testing positive (positivity) still falling across community testing (pillar 2) and health care worker/those in clinical need tests (pillar 1).
The steep drop in P2 positivity is due to the massive jump in LFD use (lateral flow devices for rapid testing among people without symptoms)

2.8m done between 1st-7th March, with a positivity of 0.17% compared with 1.7m done the week before. LFD use will rise further next wk.
Case rates falling in all ages. 70-79y/os had the lowest rates for the first time last week, with further falls this week to just 20/100,000.

The highest rates are among 30-39y/os at 89/100,000
There's still variation at regional level

Yorkshire and Humber have rates at 98/100,000 compared with 32/100,000 in the SW. But the gap isn't as apparent as the last few weeks.
But there's far more variation at upper tier local authority level, with some areas of really high enduring case rates in the Midlands, NW, and NE.

The range is stark - from 151/100,000 in Hull to just 12 in Cornwall and 10 on Isle of Wight.
As have spoken about before, this is more than just needing more isolation support. It requires a commitment to tackling underlying structural drivers of inequals - insecure employment, housing, deprivation - and local flexibility & resource to act.

Differences in infection rates by ethnicity are narrowing as case rates fall, but they still persist in some parts of the country.
In terms of incidents and outbreaks notified to PHE, great to see a drop in the number in care homes
And they remain low in schools.

Although as many of you pointed out last wk - schools outbreaks are often managed by the school with support from local authority/DfE helpline rather than PHE.

So this won't reflect all outbreaks but is useful for trends, esp as students return
Reported outbreaks also remain relatively unchanged in hospitals and workplaces.
But a bit of a jump in prisons...
And onto healthcare - admission rates still falling fast everywhere (usual caveat to say the number in hospital remains about 50% of the first wave peak)
The same for ICU admissions - incl among age groups yet to be called for vaccination.

With ICU bed use also just a little under half that seen during the first wave.
Number of deaths also still falling fast, and excess mortality's near baseline.
(although noting there's a delay in recent deaths being registered, there's no flu, and hugely sadly some people who may otherwise have died in the last wk will have died earlier in the yr)
And finally - COVID vaccine uptake among groups called so far is really high. Over 86% for all age gps above 65yrs.

By contrast, annual flu jab uptake for over 65y/o is normally around 70%.
But we know there are significant inequals in the vaccine uptake by ethnicity and deprivation, so continued efforts to increase uptake even among cohorts already called remains really important.

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More from @ADMBriggs

11 Mar
This week's T&T report. Covers 25th Feb - 3rd March.

Tl,dr:
More LFDs - esp in secondary schools,
fewer cases,
more close contacts per case,
and fewer of them from the same household as the case.

Detail in 🧵

gov.uk/government/pub…
A pretty astonishing 3.13 million people tested in the week.

This is the most since T&T launched. Until next week's data.
This is because of the large scale roll-out of LFDs.

There were 2.76m used in week ending 3rd March, compared with 2.23 the week before, with 2/3 of the increase in use coming from secondary schools.

PCR use dropped slightly over the same period.
Read 18 tweets
10 Mar
Today, the headlines enjoyed the @CommonsPAC report on COVID19: Test, Track and Trace (part 1).

Some reflections that don't focus on the ££ detail. 🧵1/11

committees.parliament.uk/publications/4…
The T&T budget is massive, and it's right that it has scrutiny. The vast majority (perhaps around 80%) has gone on testing and the achievements here are pretty significant.

Regularly >5% of population are tested for a disease that we didn't know existed around a yr ago. 2/
But by the same token relatively little has been spend on the contact tracing and isolation support.

We can't test our way out of the pandemic - it has to go hand in hand with tracing contacts and ensuring people have the support they need to isolate. 3/
Read 11 tweets
4 Mar
Latest T&T data out, covers 18-24th Feb.

Bit of a dive into testing and LFD use this week.

Tl,dr: Tests up (all LFDs), cases down, and performance relatively unchanged.

Summary in pic, detail in 🧵

gov.uk/government/pub…
There were 2.8m people tested, up 9% on the week before but still down from 3m two weeks' before.

This was all pillar 2 (community testing), up 14%. People tested using pillar 1 (HCWs and those in clinical need) fell 12%.
And more specifically, this was all lateral flow devices (LFDs) - rapid tests for people aiming to find cases among those without symptoms.

The number of LFDs used increased by 470k to 2.2m, whereas the number of pillar 2 PCR tests dropped slightly.
Read 19 tweets
4 Mar
PHE COVID surveillance report out covering 22nd-28th Feb, plus also today's REACT data. 🧵

tl,dr. Things are getting better but inequalities continue to persist.

gov.uk/government/sta…
Case rates have continued to drop in all ages.

And check out how rates in 80+y/o were tracking with those aged 20-60yrs
but over the last few weeks the rate of decline has accelerated to track more closely with those aged 60-80yrs.
After positivity went a bit wild last week (half term and therefore far fewer LFDs being done) reassuring it's back to similar trends to the week before.

Having said this, pillar 2 positivity is really hard to interpret now as includes LFDs and PCR.
Read 21 tweets
4 Mar
Latest REACT-1 study now published suggesting prevalence of COVID in England of 0.5% between 4th-23rd Feb (round 9).

Two-thirds lower than the 1.6% reported over the same period in Jan (round 8).

But big variation by region, ethnicity, and deprivation. 1/4
Higher chance of infection among Asian ethnic groups, if more deprived, bigger households, and if health/care worker. 2/4
And whilst still declining everywhere, higher prevalence in NE, London, East Mids, with some signs that falls are stalling in London, West Mids, and SE.

Finally, lowest prevalence in 65+ but big drops across the board. 3/4
Read 4 tweets
26 Feb
This week's T&T update. Covers 11th-17th Feb.

Tl,dr
testing, cases, and contacts all down
performance steady
and a critical need to tackle inequalities.

gov.uk/government/pub…
First decent fall in number of people being tested this week (not including Christmas/NY).

Down 14% to 2.6m.
Lateral flow device (LFD) use for people w/o symptoms has fallen for the first time as well as PCR.

Part this will be because this week covers the first few days of the school half term (15-19 Feb) and much of LFD use is in schools.

Would expect this to bounce up again next wk
Read 19 tweets

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