Adam Briggs Profile picture
15 Oct, 16 tweets, 12 min read
National Flu and COVID surveillance report now out, reporting 5-11th Oct.

Short(ish) summary

gov.uk/government/sta…
Cases and positivity (to 7.8% in pillar 2 and 2.7% in pillar 1).

Although not rising as quickly this week as in previous weeks, it remains hard to interpret what it means for community prevalence because it's still unclear what testing access issues remain across the country.
Case numbers and rates still dominated by 10-29y/o age gp, but worth looking at rising case rates in all age gps, including 0-4 and 5-9y/o
And positivity rates show how 10-18y/o are more likely to test positive than other age groups. I think this is going to be dominated by 18-19y/os given the student case loads, but we don't know from the data presented here.
Note ongoing geographic variation in case rates, with SE now coming out in clear fourth place after NW, NE, and Yorkshire/Humber (positivity rates also shown)
And ongoing significant variation in case rates by ethnicity. Clearly more still needs to be done both to understand the drivers of these differences and mitigate their impact.
And the useful thing about the surveillance report is that it includes other respiratory viruses. Cases of flu are beginning to emerge, and parents will be relieved that cases of rhinovirus are beginning to decline.
In terms of incidents and outbreaks, the numbers over the past week has significantly grown in care homes (from 174 to 321), this is worrying. Almost no change for edu settings but still growth in workplaces - clearly not all are COVID-secure.
And hospital and ITU admissions are climbing ever upwards. As nightingale hospitals prepare to reopen, we can see how the NE, NW and Midlands have been so disproportionately affected and are so concerned regarding capacity.
The hospital and ITU admissions are being driven, as ever, by those aged over 65 yrs, which big rises in hospital admissions for 85+ and ITU for 45-85y/o.

COVID has made it's way back up the age groups.
And is leading to more deaths at 28days and 60 days.
Deaths aren't yet translating to a signal in excess mortality but this is potentially a matter of time given the 2-4wk lag b/w COVID infection & death. Plus if hospitals reach capacity with COVID, then there's no room to manage all the other conditions that don't simply disappear
To manage this NEEDS infection rates to decline. ONS survey shows that they're still rising fast in the community.

ons.gov.uk/peoplepopulati…
To do that needs people to isolate when they have symptoms, when they're a case, when they're a contact.

To socially distance, to wash hands, wear a mask. It can be helped by consistent comms + support from local and central gov.

Otherwise it'll be a really hard few months.
Twitter wasn’t working on my laptop last night, therefore will write Test and Trace thread this eve instead.

In the meantime, we launched our new @HealthFdn Test and Trace tracker earlier yesterday - do let us know what you think.

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More from @ADMBriggs

16 Oct
Wk 19 Test & Trace. 01/10/20 – 07/10/20.

Cases up.
Positivity up.
More cases reached but fewer contacts.
And it's taking longer.

Plus this week has 11k extra cases because of the delayed transfer of 15.8k cases

gov.uk/government/pub…

Summary in pics, detail in thread 👇 ImageImageImage
Cases⬆️64%

Particularly pillar 2 (community)
Cases⬆️69% from 47,656 to 80,485; positivity⬆️to 7.7% from 5.3%

For Pillar 1 (hospitals/outbreaks)
Cases⬆️32% from 7,119 to 9,389. Positivity now 2.5% from 1.9%

And new for TT, number of individuals tested each week rising wk on wk. ImageImageImage
By age – as with last week, cases in 10-29 y/o STILL rising fast without big changes in numbers of tests done. This is reflected in the PHE surveillance positivity data by age.

ImageImage
Read 21 tweets
16 Oct
Short thread on today's latest @ONS COVID Survey release for 02/10 to 08/10

The number of community cases is really rocketing - now estimated at 27,900 cases/day in England.

ons.gov.uk/peoplepopulati… Image
This is about double what's coming through on Test and Trace data for the same time. And note that ONS doesn't include care homes, hospitals OR INSTITUTIONS - this means Uni halls of residences and colleges where we know there are significant outbreaks.
As with national testing data (as reported in PHE surveillance report), huge geographic variation with NE, NW, Yorkshire/Humber still massively more cases than elsewhere.

BUT cases may be plateauing in the north, although not in midlands/London. ImageImage
Read 7 tweets
12 Oct
Local contact tracing is where local authorities set up local teams to contact cases that the national team is unable to reach within 24hrs.

They're seen as part of the solution to rising case numbers in England.
And with good reason. Early data from places like Blackburn with Darwen @BWDDPH suggest that they're able to reach up to 9 out of 10 cases that couldn't be contacted by the national team.

manchestereveningnews.co.uk/news/uk-news/h…
Some of the cases that that national team miss don't want to be reached and won't ever engage.

Some just missed the call or didn't recognise the number.

And others are likely to be more vulnerable, socially isolated, digitally deprived, transient, or economically worse off.
Read 22 tweets
8 Oct
Week 18 Test & Trace data summary. 24/09/20 – 30/09/20.
And some of today's PHE surveillance rpt as well.

Not so good.

Cases, admissions, deaths up.

TT performance continues to worsen, not to mention Excelgate.

Summary in picture, detail in thread 👇

gov.uk/government/pub…
Cases in pillar 1 up 13% from 5,171 to 5,855 (NHS/PHE labs – outbreaks/hospital)
Cases in pillar 2 up 64% from 27,761 to 45,620 (community)

Number of new people tested – no change. This seems to have plateaued (see later in thread about this and positivity rates)
By age – rises in all age groups but note BIG jump in cases among 10-19yr olds.

This is alongside no change in number of new people age 10-19 tested.
Read 32 tweets
1 Oct
Week 17 Test & Trace data summary. 17/09/20 – 23/09/20.

Not a pretty picture.

Cases ⬆️61%.
Tests ↔️
Test positivity rate ++⬆️from 3.3% to 5.3% (+ some useful detail by age)

Test and Trace performance worse.

gov.uk/government/pub…

Summary in picture, detail in thread 👇
Despite no change in number of tests,

- cases in pillar 1 ⬆️34% from 3,653 to 4,898 (NHS/PHE labs – outbreaks/hospital)
- cases in pillar 2 ⬆️67% from 15,853 to 26,475 (community)

Means positivity for pillar 2 ⬆️from 3.3% to 6.7%
And pillar 1 ⬆️from 1.8% to 2.5%
And like @PHE_uk surveillance, they now give data by age

Case numbers still dominated by 20-29/yr olds, but growth in cases across all ages (except 90+)

And there are big differences by age, steep rises across all age gps b/w 20-70yrs
0-19yrs much less change in positivity rate
Read 24 tweets
1 Oct
REACT-1 study results - data to 26th Sept. Some context.

1 in 200 in Eng infected (far more than ONS survey to 19th Sept, which estimates 1 in 500)

R number lower-now 1.1, doubling time longer-now 10.6 days, BUT rise in number infected is substantial.

imperial.ac.uk/news/205473/la…
Prevalence highest in 18-24y/o (same as ONS)
BUT 7 fold increase in rate over 65y/o.

And BIG regional variation.

This is similar to ONS survey results.
So encouraging that R number falling, BUT this will be different in different parts of the country.

Rise in infection rates in older people.

Rates 2x as high in Black & Asian ethnicity vs White

And now 0.55% of population infected=approx 411,000 people (ONS estimate 104,000).
Read 5 tweets

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