John Bye Profile picture
5 Nov, 16 tweets, 7 min read
This week's Test & Trace report is out, showing cases continuing to rise last week, despite a dip in testing.

Test turnaround times continued to improve, but both testing and contact tracing are still performing far below the levels they need to reach to be effective.
The government claimed big increases in lab capacity last week, but the number of tests done and people tested in England actually dipped slightly compared to the previous week.

Despite this more people tested positive, leading to another rise in positivity rates.
In fact, the only Pillar 2 testing that went up was "Satellite" tests, which is mostly regular screening of asymptomatic care home staff and residents.

If you strip repeat tests out, the positivity rate for people tested for the first time in the community reached almost 24%!
Once again about 2% of all Pillar 2 (community) tests didn't deliver a result to the person who took it by the time the report data was compiled.

This seems to have returned to the system's base level, after a massive spike at the end of September.
Test turnaround times continue to improve, with in person tests (at walk in, drive in and mobile units) still recovering from an unexplained spike two weeks ago.

Only 26% of in person test results are delivered within 24 hours of taking the test though, which was the target.
Turnaround times for home test kits and satellite testing are also continuing to recover after the disastrous delays seen when labs were overloaded in August and September.

Even with improved lab capacity though, they're not back to the turnaround times seen in June and July.
On the contact tracing front, the number of cases referred to the service unsurprisingly went up again.

In fact, it's higher than the number of people who tested positive this week, suggesting they're still catching up on some people tested in previous weeks.
This is the first report to show the impact of call centre staff being drafted in to help the Tier 2 clinical staff who normally handle new cases.

83% of cases were reached, which is slightly up on last week when 81% were initially reached (now 83% with delayed calls included).
The time taken to reach new cases has also improved significantly compared to last week, with the percentage of new cases reached within 24 hours of being referred to the system rising from 36% to 55%.

But all may not be what it seems...
Quality also matters.

Normally new cases (including bereaved relatives and seriously ill people) are called by people with medical experience who can assess their needs.

But now some are called by untrained call centre workers.

This is not going well.

There's also been a big increase in the proportion of cases who filled out a form online, rather than being reached by phone. This has shot up from 25% two weeks ago to 47% now!

So more cases were reached, but the quality of service they get may have dropped.
Perhaps because of these two issues, the proportion of contacts they were given without any actual contact information that would let tracers reach them went up from 20% to 24%. This is the worst figure since June.

As a result, the proportion of contacts reached hasn't improved.
On the up side, tracers did reach contacts faster than they did the previous week, continuing to recover from a drop in performance in late September and early October.

With just 44% of contacts reached within 24 hours though, it's still worse than at any other point since June.
All in all it's a mixed picture.

Test turnaround times and some elements of contact tracing are slowly recovering from recent issues.

But by most measures they're still struggling to keep up with soaring cases, and more than 40% of close contacts still aren't being reached.
This week's Test & Trace report and accompanying data can be found here -

gov.uk/government/pub…
And here's my analysis of last week's report, for comparison.

As you may have noticed, I've changed the summary at the top of this week's thread. Hopefully it's easier to read now and gives more relevant information, but feedback is welcome!

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with John Bye

John Bye Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @_johnbye

6 Nov
Biden is almost 4 million votes ahead nationwide, but the outcome of the US election came down to a few thousand votes in 4 states.

Thanks to the electoral college, 33 of 50 states didn't get a single visit from either candidate.

There was no point even contesting most states!
It's not like this is a new problem.

The electoral college was a fine idea in theory, 230 years ago. But it broke down within a few years.

After two centuries of tinkering with local and national rules it's just a confusing mess that bears no resemblance to the original idea.
In an increasingly polarised two party system, where 48 out of 50 states give all their electors to the candidate who gets the most votes, it's horribly broken.

All the effort usually goes into fighting a handful of "battleground states" while everyone else is taken for granted.
Read 6 tweets
4 Nov
Here we go again. The government just released updated guidance for schools, a few hours before it takes effect as the second lockdown begins.
At the end of August the government updated (pretty much all of) their guidance for schools a few days before schools reopened after the summer. Leaving them with the bank holiday weekend to prepare.

And then in September they pulled the same trick on universities.

Read 5 tweets
3 Nov
A lot of covid sceptics are sharing this story today.

The first claim it makes (about a "dodgy hospital heatmap") is very obviously wrong though.

The Daily Mail is either deliberately trying to mislead people or (just as likely) doesn't understand what it's talking about.
They say 232 of 482 English hospitals had NO covid patients on October 27th.

But the vast majority of those have NEVER had covid patients, because they're private hospitals, mental health units, specialist hospitals etc, many with no general or acute care beds to put them in!
175 of the 232 hospitals without covid patients are private hospitals (including cosmetic surgeries and mental health centres).

Unsurprisingly, 170 of them haven't had a single covid patient in at least the last 3 months. Because that's not what private hospitals generally do.
Read 7 tweets
2 Nov
The government claims to have hit its target of expanding lab capacity to 500,000 "virus" tests a day.

As with their 100,000 tests a day target in April though, there's been a rather suspicious last minute surge to reach the target which, just a week ago, looked hopeless.
Back in April the government pulled this off by counting 40,000 tests they'd put in the post as "done", even though they hadn't been used and actually processed in a lab yet.

In fact, we now know they didn't really hit 100,000 tests a day until May 20th.

The latest surge comes almost entirely from Pillar 1 (NHS and PHE) lab capacity.

This hasn't increased AT ALL for 4 months, but now we're expected to believe it suddenly doubled in 4 days, just in time to hit an arbitrary target.

And oddly none of this capacity is being used.
Read 11 tweets
18 Oct
No, flu has not disappeared.

Covid sceptics are claiming that flu deaths have dropped from a normal 17,000 to 394 this year. Implying flu deaths are misreported as covid.

In fact flu deaths in England are normal this year.

They're comparing two completely different numbers.
The 17,000 five year average comes from this Full Fact article, which in turn is based on figures from PHE.

It's the "number of deaths associated with influenza", calculated by the FluMOMO algorithm.

So not a direct measurement OR direct cause of death.

fullfact.org/health/coronav… Image
But the 394 flu deaths for this year (up to August 31st) is the ONS figure for the number of death certificates which specifically listed influenza as the underlying cause of death.

People who died "from flu not with flu", as covid sceptics would put it.

ons.gov.uk/peoplepopulati… Image
Read 5 tweets
13 Oct
One of these women is a BBC journalist.

The other is the Chairman of the Conservative Party.

Spot the difference:
Tom Newton Dunn of Times Radio (and formerly the Sun) seems to have edged the field, managing to copy and paste the latest message from Dominic Cummings (sorry, Sr Guv Source) at 19:46.

Conservative Chair Amanda Milling came in second at 19:57.

Read 6 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!