David Osborn
@safedavid3.bsky.social
Health and Safety Consultant
Executive Team Member Covid-19 Airborne Transmission Alliance (CATA)
Core Participant in UK Covid-19 Public Inquiry
Views are my own
Executive Team Member Covid-19 Airborne Transmission Alliance (CATA)
Core Participant in UK Covid-19 Public Inquiry
Views are my own
📢 Children have been bullied by adults and children, denied remote education & families threatened with fines – just for trying to stay safe in a pandemic.
This is the reality for Clinically Vulnerable families.
Read CVF's new blog ahead of the #CovidInquiry children’s module👇 which starts 29 Sep
This is the reality for Clinically Vulnerable families.
Read CVF's new blog ahead of the #CovidInquiry children’s module👇 which starts 29 Sep
September 21, 2025 at 7:22 PM
📢 Children have been bullied by adults and children, denied remote education & families threatened with fines – just for trying to stay safe in a pandemic.
This is the reality for Clinically Vulnerable families.
Read CVF's new blog ahead of the #CovidInquiry children’s module👇 which starts 29 Sep
This is the reality for Clinically Vulnerable families.
Read CVF's new blog ahead of the #CovidInquiry children’s module👇 which starts 29 Sep
Oh dear, they can't do that.
By their own admission they STILL don't have a pandemic response plan for a respiratory/airborne pandemic. They've only just started work on one.
Hmmm. A bit late now! Would have been nice to have had such a response plan in 2020
By their own admission they STILL don't have a pandemic response plan for a respiratory/airborne pandemic. They've only just started work on one.
Hmmm. A bit late now! Would have been nice to have had such a response plan in 2020
September 14, 2025 at 2:16 AM
Oh dear, they can't do that.
By their own admission they STILL don't have a pandemic response plan for a respiratory/airborne pandemic. They've only just started work on one.
Hmmm. A bit late now! Would have been nice to have had such a response plan in 2020
By their own admission they STILL don't have a pandemic response plan for a respiratory/airborne pandemic. They've only just started work on one.
Hmmm. A bit late now! Would have been nice to have had such a response plan in 2020
Exercise Pegasus - The UK Prepares for Pandemic simulation.
I wonder whether key stakeholders will be invited to join as participants or observers?
By "key stakeholders” I mean those who will die or be seriously harmed when Gov UK gets it wrong (again!)
I wonder whether key stakeholders will be invited to join as participants or observers?
By "key stakeholders” I mean those who will die or be seriously harmed when Gov UK gets it wrong (again!)
September 14, 2025 at 2:00 AM
Exercise Pegasus - The UK Prepares for Pandemic simulation.
I wonder whether key stakeholders will be invited to join as participants or observers?
By "key stakeholders” I mean those who will die or be seriously harmed when Gov UK gets it wrong (again!)
I wonder whether key stakeholders will be invited to join as participants or observers?
By "key stakeholders” I mean those who will die or be seriously harmed when Gov UK gets it wrong (again!)
As per COSHH Regulations ‘hierarchy of control’, the use of ventilated headboards (engineering control) has precedence over PPE & should be the first choice.
That said, the cost/time involved in setting this up at scale to cope with another pandemic may not be practicable.
Image: CDC
That said, the cost/time involved in setting this up at scale to cope with another pandemic may not be practicable.
Image: CDC
September 14, 2025 at 12:47 AM
As per COSHH Regulations ‘hierarchy of control’, the use of ventilated headboards (engineering control) has precedence over PPE & should be the first choice.
That said, the cost/time involved in setting this up at scale to cope with another pandemic may not be practicable.
Image: CDC
That said, the cost/time involved in setting this up at scale to cope with another pandemic may not be practicable.
Image: CDC
The most effective means of HCW protection were:
‘ventilated headboards’ (local air extraction to remove the plume of aerosol around patient’s head);
and
Powered respirators (deliver HEPA-filtered air to wearer).
‘ventilated headboards’ (local air extraction to remove the plume of aerosol around patient’s head);
and
Powered respirators (deliver HEPA-filtered air to wearer).
September 14, 2025 at 12:42 AM
The most effective means of HCW protection were:
‘ventilated headboards’ (local air extraction to remove the plume of aerosol around patient’s head);
and
Powered respirators (deliver HEPA-filtered air to wearer).
‘ventilated headboards’ (local air extraction to remove the plume of aerosol around patient’s head);
and
Powered respirators (deliver HEPA-filtered air to wearer).
Size Matters!???
This topic exposes how the IPC authors are still wedded to principle of aerosols being ‘respirable’ i.e. 5 microns or less, despite the expert evidence at the Covid-19 Inquiry.
Getting this wrong means that Healthcare Workers are given inadequate respiratory protection.
This topic exposes how the IPC authors are still wedded to principle of aerosols being ‘respirable’ i.e. 5 microns or less, despite the expert evidence at the Covid-19 Inquiry.
Getting this wrong means that Healthcare Workers are given inadequate respiratory protection.
August 23, 2025 at 12:02 AM
Size Matters!???
This topic exposes how the IPC authors are still wedded to principle of aerosols being ‘respirable’ i.e. 5 microns or less, despite the expert evidence at the Covid-19 Inquiry.
Getting this wrong means that Healthcare Workers are given inadequate respiratory protection.
This topic exposes how the IPC authors are still wedded to principle of aerosols being ‘respirable’ i.e. 5 microns or less, despite the expert evidence at the Covid-19 Inquiry.
Getting this wrong means that Healthcare Workers are given inadequate respiratory protection.
The legal aspects are clearly explained:
August 22, 2025 at 11:58 PM
The legal aspects are clearly explained:
Let’s double-down on that FOR THE BENEFIT OF THE AUTHORS OF THE IPC MANUALS:
August 22, 2025 at 11:57 PM
Let’s double-down on that FOR THE BENEFIT OF THE AUTHORS OF THE IPC MANUALS:
It clarifies the legal status both of Surgical Masks and Respiratory Protective Equipment (eg FFP3, reusables, powered hoods). It blows away the myth contained in IPC Manuals and many other places by people who would have us believe FRSMs protect us against Covid-19, flu (etc)
August 22, 2025 at 11:56 PM
It clarifies the legal status both of Surgical Masks and Respiratory Protective Equipment (eg FFP3, reusables, powered hoods). It blows away the myth contained in IPC Manuals and many other places by people who would have us believe FRSMs protect us against Covid-19, flu (etc)
This has been prepared by BOHS, acknowledged experts in all matters relating to PPE and health risks at work (including microbiological risks).
August 22, 2025 at 11:52 PM
This has been prepared by BOHS, acknowledged experts in all matters relating to PPE and health risks at work (including microbiological risks).
Following from Question 3 above, here we see the HSE Policy Director suggesting that healthcare workers, injured by occupational exposure to Covid-19, may just want some "incredible retribution for what happened to them"
No! Not retribution! They just wanted an official record made of their case.
No! Not retribution! They just wanted an official record made of their case.
July 28, 2025 at 2:02 AM
Following from Question 3 above, here we see the HSE Policy Director suggesting that healthcare workers, injured by occupational exposure to Covid-19, may just want some "incredible retribution for what happened to them"
No! Not retribution! They just wanted an official record made of their case.
No! Not retribution! They just wanted an official record made of their case.
PS Just noticed that the image in the first item in this thread (Dr Hammond’s article) wasn't very clear to read, so here it is again...
July 10, 2025 at 9:14 PM
PS Just noticed that the image in the first item in this thread (Dr Hammond’s article) wasn't very clear to read, so here it is again...
Dr Phil Hammond reveals in Private Eye that CATA (the Covid Airborne Transmission Alliance) is threatening to take the UK Government to Court for a judicial review.
Pre-action protocols require the parties to attempt to resolve their issues out of Court.
Pre-action protocols require the parties to attempt to resolve their issues out of Court.
July 10, 2025 at 8:58 PM
Dr Phil Hammond reveals in Private Eye that CATA (the Covid Airborne Transmission Alliance) is threatening to take the UK Government to Court for a judicial review.
Pre-action protocols require the parties to attempt to resolve their issues out of Court.
Pre-action protocols require the parties to attempt to resolve their issues out of Court.
This paper provides more background on the need for powered respirators.
Submissions to the Covid Inquiry that it is too difficult to train HCWs in their use or that the technology is too complex for healthcare workers were rubbish.
ASK THE STAFF AT SOUTHAMPTON !
tinyurl.com/7w9rx8as
#8 of 8
Submissions to the Covid Inquiry that it is too difficult to train HCWs in their use or that the technology is too complex for healthcare workers were rubbish.
ASK THE STAFF AT SOUTHAMPTON !
tinyurl.com/7w9rx8as
#8 of 8
June 13, 2025 at 11:40 AM
This paper provides more background on the need for powered respirators.
Submissions to the Covid Inquiry that it is too difficult to train HCWs in their use or that the technology is too complex for healthcare workers were rubbish.
ASK THE STAFF AT SOUTHAMPTON !
tinyurl.com/7w9rx8as
#8 of 8
Submissions to the Covid Inquiry that it is too difficult to train HCWs in their use or that the technology is too complex for healthcare workers were rubbish.
ASK THE STAFF AT SOUTHAMPTON !
tinyurl.com/7w9rx8as
#8 of 8
🚨 🚨 🚨 🚨 🚨 🚨
Absolutely essential viewing for any doctor, nurse, midwife, porter or other healthcare worker wishing to survive the next pandemic of an airborne pathogen.
Watch this interview at all costs...
tinyurl.com/yc74vj66
🚨 🚨 🚨 🚨 🚨 🚨
#1 of 8
Absolutely essential viewing for any doctor, nurse, midwife, porter or other healthcare worker wishing to survive the next pandemic of an airborne pathogen.
Watch this interview at all costs...
tinyurl.com/yc74vj66
🚨 🚨 🚨 🚨 🚨 🚨
#1 of 8
June 13, 2025 at 11:24 AM
🚨 🚨 🚨 🚨 🚨 🚨
Absolutely essential viewing for any doctor, nurse, midwife, porter or other healthcare worker wishing to survive the next pandemic of an airborne pathogen.
Watch this interview at all costs...
tinyurl.com/yc74vj66
🚨 🚨 🚨 🚨 🚨 🚨
#1 of 8
Absolutely essential viewing for any doctor, nurse, midwife, porter or other healthcare worker wishing to survive the next pandemic of an airborne pathogen.
Watch this interview at all costs...
tinyurl.com/yc74vj66
🚨 🚨 🚨 🚨 🚨 🚨
#1 of 8
💥💥💥💥💥
Following her recent letter, CATA has written to the Minister respectfully advising her that, as per her predecessor (Gwynne), she’s been badly advised.
One can only speculate whether by DHSC, UK-HSA or the NHS/IPC “droplet, not airborne” dogmatists.
www.tridenthse.co.uk/2025_03_18_L...
1/11
Following her recent letter, CATA has written to the Minister respectfully advising her that, as per her predecessor (Gwynne), she’s been badly advised.
One can only speculate whether by DHSC, UK-HSA or the NHS/IPC “droplet, not airborne” dogmatists.
www.tridenthse.co.uk/2025_03_18_L...
1/11
March 30, 2025 at 12:10 AM
💥💥💥💥💥
Following her recent letter, CATA has written to the Minister respectfully advising her that, as per her predecessor (Gwynne), she’s been badly advised.
One can only speculate whether by DHSC, UK-HSA or the NHS/IPC “droplet, not airborne” dogmatists.
www.tridenthse.co.uk/2025_03_18_L...
1/11
Following her recent letter, CATA has written to the Minister respectfully advising her that, as per her predecessor (Gwynne), she’s been badly advised.
One can only speculate whether by DHSC, UK-HSA or the NHS/IPC “droplet, not airborne” dogmatists.
www.tridenthse.co.uk/2025_03_18_L...
1/11
For all their claiming to follow World Health Organisation guidance, this speaks volumes…
March 2, 2025 at 2:25 PM
For all their claiming to follow World Health Organisation guidance, this speaks volumes…
To illustrate the ‘questionable competency’ point, they openly suggest this method to achieve a secure fit for fluid resistant surgical masks.
These people are, indeed, the friend of the pathogenic virus - providing a nice yawning gap around the cheeks for easy entry to the respiratory system.
These people are, indeed, the friend of the pathogenic virus - providing a nice yawning gap around the cheeks for easy entry to the respiratory system.
March 2, 2025 at 2:22 PM
To illustrate the ‘questionable competency’ point, they openly suggest this method to achieve a secure fit for fluid resistant surgical masks.
These people are, indeed, the friend of the pathogenic virus - providing a nice yawning gap around the cheeks for easy entry to the respiratory system.
These people are, indeed, the friend of the pathogenic virus - providing a nice yawning gap around the cheeks for easy entry to the respiratory system.
To save you the trouble of accessing ChatGPT:
March 2, 2025 at 12:31 AM
To save you the trouble of accessing ChatGPT:
Offeddu et al was heavily relied upon by IPC Nurse Dr Ritchie when she drafted version 1.0 IPC guidance
March 2, 2025 at 12:27 AM
Offeddu et al was heavily relied upon by IPC Nurse Dr Ritchie when she drafted version 1.0 IPC guidance
End of CATA’s campaign and participation in Module 3 of the UK Covid Public Inquiry
Letter from CATA Executive Team to member organisations:
- BAPEN
- RCSLT
- BOHS
- QNI
- ARTP
- BDA
- BIASP
- BSG
- COP
- DAUK
- NNNG
- PSL
and individual members
tinyurl.com/ysekrns6
Letter from CATA Executive Team to member organisations:
- BAPEN
- RCSLT
- BOHS
- QNI
- ARTP
- BDA
- BIASP
- BSG
- COP
- DAUK
- NNNG
- PSL
and individual members
tinyurl.com/ysekrns6
February 26, 2025 at 2:30 PM
End of CATA’s campaign and participation in Module 3 of the UK Covid Public Inquiry
Letter from CATA Executive Team to member organisations:
- BAPEN
- RCSLT
- BOHS
- QNI
- ARTP
- BDA
- BIASP
- BSG
- COP
- DAUK
- NNNG
- PSL
and individual members
tinyurl.com/ysekrns6
Letter from CATA Executive Team to member organisations:
- BAPEN
- RCSLT
- BOHS
- QNI
- ARTP
- BDA
- BIASP
- BSG
- COP
- DAUK
- NNNG
- PSL
and individual members
tinyurl.com/ysekrns6
COSHH, and associated Approved Code of Practice requires RPE to protect against ALL routes of transmission - especially when the hazardous agent is “airborne”.
Whether or not ‘PREDOMINENTLY airborne’ as mistakenly believed by some of the less competent witnesses during module 3
Whether or not ‘PREDOMINENTLY airborne’ as mistakenly believed by some of the less competent witnesses during module 3
February 7, 2025 at 2:39 AM
COSHH, and associated Approved Code of Practice requires RPE to protect against ALL routes of transmission - especially when the hazardous agent is “airborne”.
Whether or not ‘PREDOMINENTLY airborne’ as mistakenly believed by some of the less competent witnesses during module 3
Whether or not ‘PREDOMINENTLY airborne’ as mistakenly believed by some of the less competent witnesses during module 3
History may come to view this as the most egregious act of disregard for 'right to life’ perpetrated upon its workforce in the history of NHS.
(right to life within the meaning of Article 2, Human Rights Act)
(right to life within the meaning of Article 2, Human Rights Act)
February 7, 2025 at 2:38 AM
History may come to view this as the most egregious act of disregard for 'right to life’ perpetrated upon its workforce in the history of NHS.
(right to life within the meaning of Article 2, Human Rights Act)
(right to life within the meaning of Article 2, Human Rights Act)
The Government assured Healthcare Workers that these loose-fitting, flimsy surgical masks would keep them safe when providing close-quarter care to patients who were infectious with a disease which clearly had the potential to kill them (and did).
February 7, 2025 at 2:36 AM
The Government assured Healthcare Workers that these loose-fitting, flimsy surgical masks would keep them safe when providing close-quarter care to patients who were infectious with a disease which clearly had the potential to kill them (and did).
This does NOT include any form of surgical mask (aka medical mask) (aka ‘baggy blue’) These devices are not legally recognised as PPE in the UK. They never have been.
February 7, 2025 at 2:35 AM
This does NOT include any form of surgical mask (aka medical mask) (aka ‘baggy blue’) These devices are not legally recognised as PPE in the UK. They never have been.