It was announced this week that SIR CHRIS WORMALD has been named as the new Cabinet Secretary & Head of the Civil Service, one of the most powerful jobs in government.

I thought I’d take a look back at what we learned about him from his recent Covid Inquiry appearances…

🧵
In her Closing Statement at the end of module 3, the Counsel for Covid Bereaved Families for Justice UK gave a scathing appraisal of Sir Chris Wormald’s evidence, describing it as:

“…an object lesson in obfuscation, a word salad – so many, many words, so very little substance”.
And she’s absolutely right. His testimony was decidedly unimpressive.

Most of his answers were evasive, repetitive & waffly, with very little substance.

For example, in this clip he is asked about the stop order on FFP3 masks in June 2020, but fails to give a straight answer.
At times, his evidence revealed how little he knew about what had actually happened, right under his nose…
For example, we know from Lisa Ritchie’s evidence that the IPC Cell (the group tasked with writing the IPC guidance) was led by nurses & predominantly made up of nurses…

…yet Wormald was adamant during his testimony that IPC guidance was written by medically qualified doctors.
I’ve also looked back to his testimony from Nov 2023 when we heard about a WhatsApp exchange with his then-boss, Mark Sedwill, on 12 March 2020.

Sedwill wrote: “Presumably, like chickenpox, we want people to get it and develop herd immunity...”

Wormald replied: “Exactly right.”
In a message later that day, @Dominic2306 Cummings wrote:

“Sedwill babbling about chickenpox, god f***ing help us”.

Cummings also told the Inquiry:

“…it made us think: who on earth is briefing the most important official in the country along these lines. This is terrifying.”
@Dominic2306 During his testimony, Sir Chris Wormald tried to dodge the blame for endorsing the herd immunity strategy by saying what was written in this message was “pretty much identical to what Sir Patrick Vallance says at the COBRA meeting”…

…but that is demonstrably untrue...
@Dominic2306 Evidence shows that Sir Patrick Vallance was giving clear warnings to the contrary at this time:

“We MUST change course. We MUST suppress this virus. It’s going to overwhelm us.”

Apparently Wormald was “incandescent” at Sir Patrick for saying this & gave him a “ticking off”.
Here’s the exact quote from Sir Patrick’s diary:

“I dropped a bombshell of needing to move fast, I got a ticking off indirectly from the permanent secretary of the DHSC [Wormald] who was incandescent”.

telegraph.co.uk/news/2023/11/0…Image
After news broke about Wormald’s promotion this week, @Dominic2306 Cummings tweeted:

“Many officials came to me in panic when they realised [Wormald] truly believed that the faster everyone got Covid, the better. He is now in charge of the entire system. Plan accordingly!” Image
@Dominic2306 Cummings also added further insight as to what went on behind closed doors back in March 2020…

“Wormald wrote to the Cabinet Secretary - what's the point of doing anything much, the NHS will be smashed anyway, we just have to accept 500k-1m dead with our 'world leading' plan.” Image
@Dominic2306 There’s also something rather “jarring” about these two facts:

1. A Covid corruption commissioner has just been appointed.

2. Chris Wormald was the top official in the DHSC which oversaw the awarding of the dodgy PPE contracts - and he’s just been promoted to Cabinet Secretary. Image
@Dominic2306 If this thread has piqued your interest and you’d like to learn more about the shocking evidence emerging from the Covid Inquiry, please take a peek at this megathread which walks you through some of the key moments from various witnesses during module 3…

🧵⬇️

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More from @_CatintheHat

Feb 22
FROM THE OLYMPICS TO NASA, WEARING MASKS IS BACK - EXCEPT IN HEALTHCARE

Brilliant article on how masking is increasingly popular with Olympic athletes, actors & astronauts wanting to avoid illness…

…but sadly, in hospitals, masking is rare & those who do are often gaslit.

🧵 Image
Here’s a link to the online version of this article by the brilliant Tess Finch Lees:
independent.ie/opinion/commen…
The link above is paywalled so here’s an archived link where you can read it for free:


(Please do also click the first link as well though to increase traffic & help persuade editors to publish more Covid stories like this).archive.ph/sfP52
Read 18 tweets
Feb 20
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Something unusual & concerning in Scotland’s Covid data in the last few weeks.

There’s been a sharp rise in the proportion of hospitalised Covid cases which are children.

Currently over half of all Covid hospitalisations in Scotland are kids aged 0-14 years.

(h/t @gwladwr) Image
The data also shows that, since January, Covid incidence rates for these younger age groups have been going into the ‘high’ (dark blue) and ‘very high’ (purple) classifications, particularly the 1-4 years age group. Image
I’ve also taken a look at the England data and Covid positivity rates have been rising sharply in recent weeks in the 0-14 age groups.

Definitely one to watch in the coming weeks… Image
Read 4 tweets
Jan 30
🏴󠁧󠁢󠁥󠁮󠁧󠁿PUPIL ABSENCE - AUTUMN 2025

The DfE have now published pupil absence data for the Autumn term:

🔎 Pupil illness absence across the autumn term averaged out at 3.44% (compared to pre-pandemic average of 2.5%).

🔎 By the end of Nov, illness absence had soared to 4.7%.

🧵 Image
DfE commentary:

“The increases seen in the latter weeks of term were mainly driven by illness-related absence”

“This increase in absence is equivalent to approximately 500,000 less days in school compared to the previous autumn term.”

…e-education-statistics.service.gov.uk/find-statistic…Image
To anyone paying attention, these illness absence figures should not come as a surprise.

By early December, UKHSA was warning about how flu was spreading like wildfire through classrooms, leading to very high infection rates in school-age children (pink & green lines on chart). Image
Read 10 tweets
Jan 4
COVID & CHILD DEVELOPMENT

New US study showing impact on child brain development when their mothers are infected with COVID during pregnancy.

Results show:
🔎 Structural differences in regions of the brain
🔎Lower cognition & social-emotional scores

sciencedirect.com/science/articl… x.com/harryspoelstra…Image
And here’s another study, this time from Brazil (published Jun 2025), which also shows the impact of maternal COVID infection on child development.

At 24 months:
🔎 36% of infants exhibited cognitive delays
🔎 64% communication delays
🔎 57% motor delays

nature.com/articles/s4139…Image
And another study, just published this week (Jan 2026) in ‘Obstetrics & Gynecology’, came to similar conclusions…

“Maternal SARS-CoV-2 infection in pregnancy was associated with increased risk of adverse neurodevelopmental diagnoses by age 3 years”.

journals.lww.com/greenjournal/f… x.com/jama_current/s…Image
Read 4 tweets
Dec 17, 2025
“When it comes to flu, the focus is often on droplet transmission, but there’s also evidence of aerosol transmission. That means that ventilation & air filtration are HUGELY important.

“Are the Govt looking to improve that to help deal with all the respiratory infections?”

/1
It’s absolutely brilliant to hear Baroness Bennett raising this crucial question in the House of Lords this week.

Thank you, @natalieben 🙏🏻

You can read a transcript of the full question and response received below ⬇️



/2 hansard.parliament.uk/Lords/2025-12-…Image
Given the shocking state of ventilation in UK hospitals ⬇️…

3/
Read 4 tweets
Dec 11, 2025
This feels like an important breakthrough moment…

On the BBC News this evening, Medical Editor @BBCFergusWalsh clearly stated:

“As for facemasks, simple surgical masks are *not* good at stopping viruses. You really need a properly fitted tight respirator mask for that”…

/1
…which begs the question, why does the NHS infection control guidance STILL only recommend surgical masks for treating patients with airborne viruses like flu & Covid… and not proper FFP3 masks?

Even Baroness Hallett was rather perplexed by this during the Covid Inquiry.

/2
The IPC experts (Dr Warne & Dr Shin) who provided independent specialist advice to the Covid Inquiry both stated that IPC guidelines should be updated to recommend routine use of FFP3 masks when caring for patients with ANY respiratory virus.

So why has this not been done?

/3
Read 7 tweets

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