Adam Briggs Profile picture
29 Oct, 12 tweets, 10 min read
This week's PHE flu and COVID surveillance. Data 19-25th Oct.

The situation continues to worsen.
Although good news that there's very little flu around at the moment.

gov.uk/government/sta…
Cases and positivity rates continue to rise - 120,000 cases in the week to 25th Oct.

By comparison. Data from REACT-1 study over the same period suggest 96,000 new community cases/day in England.
Cases continue to increase among older age groups, alongside evidence of case rates flattening off among children and young adults.
And whilst case rates remain highest in the North of the country, rates elsewhere are starting to catch up. Particularly note significant increases in West Midlands, which hasn't *yet* gone into tier 3

coventrytelegraph.net/news/coventry-…
A worrying increase in confirmed/suspected COVID outbreaks for care homes in the most recent week, as well as (surprisingly) in workplaces, but not in edu settings. Would be v helpful to have a breakdown of different types of workplace.
And as is now well documented, COVID admissions to hospital and ICU continue to soar (and for flu they remain essentially non-existent).
Although admission are highest in the North and Midlands, they are now rising steeply across the country.
and given the delay between exposure, infection, and admission. Admissions among those over 65 both to hospital and ICU are going to continue to rise steeply over the coming 2-3 weeks. Even if we completely locked down now.
Which leads to - potentially avoidable - rising mortality that is now showing the excess mortality data.
With all this, it is so so important to state again that anything done to restrict viral transmission after case rates and hospital admissions rise is by definition, reactive rather than preventive.
The next four weeks of COVID hospital admissions and deaths are already beyond our reach.

But it's still within our gift to prevent the admissions and deaths of December, Christmas, and into 2021.

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More from @ADMBriggs

29 Oct
Week 21 Test & Trace data summary. 15/10/20 – 21/10/20.

Tests⬆️, cases⬆️, positivity⬆️, contacts⬆️.

And whilst performance on contact tracing is similar to last week in many areas, it's taking ever longer.

Summary in picture, detail in thread 👇

gov.uk/government/pub…
More individuals than every are being tested each week. Over 1.5m in the for the most recent week.

This is no small achievement.
Case numbers are also rising. Up 23% to 126,065 in 15/10-21/10.

Positivity also rising for both pillar 1 (NHS/PHE labs) - now 4.1%, and pillar 2 (community) - now 9.9%.

Today's PHE surveillance report to 25/10 shows very similar data.
Read 25 tweets
22 Oct
Wk 20 Test and Trace - 08/10/20 to 15/10/20

-For the first time, >100,000 cases in a week
-Percentage of cases being reached is still high, but high numbers mean 18k still not contacted.
-Plus it's taking longer.

Summary in pics, detail in thread
gov.uk/government/pub… ImageImage
Whilst the number tested in the last week was same as wk before, the total cases⬆️12% to 101,494.

12,323 are pillar 1 (up 26% on last week), & 89,171 are pillar 2 (up 11% on last week.

Pillar 1 positivity now 3.3% (hospitals/outbreaks)
Pillar 2 positivity now 8.5% (community) ImageImageImage
By age, 10-29 yr olds still account for the majority of cases, but as today's PHE surveillance report (data to 28th Oct) shows, more and more older people are becoming infected, and infection rates among 10-29 may be leveling off.

ImageImageImageImage
Read 22 tweets
22 Oct
PHE flu and COVID surveillance report for 12th - 18th October is now up.

Summary here:
assets.publishing.service.gov.uk/government/upl…
P2 positivity still v high at 8.6% (P1 now 3.4%) but rate of growth has slowed.

Will be v important to see if next update of ONS infection mirrors this or not (last data is up to 8th Oct)
Cases still mainly in 10-29y/o age group, but cases now clearly rising up the age groups.

Case rates for 10-29y/os fallen since last week, alongside rises in all age groups above 30yrs.
Read 12 tweets
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 👇
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.
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.

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…
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.
Read 7 tweets
15 Oct
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
Read 16 tweets

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