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Maarten De Cock Profile picture
@mdc_martinus
Oct 24 • 4 tweets • 2 min read Twitter logo Read on Twitter
On 30 January (!) 2020, Global Nurses United wrote @DrTedros a letter demanding @WHO to call for

“airborne precautions to be implemented when health care workers are caring for patients with possible or known 2019-nCoV infections.”

They were ignored.

👉 nationalnursesunited.org/sites/default/…

Image
👇
“WHO’s recommendation that only droplet and contact precautions be used for patients with possible 2019-nCoV infections is irresponsible and may endanger healthcare workers. The WHO (…) neglects the precautionary principle…”

GlobalNursesUnited to @DrTedros, 30 January, 2020. Image
@DrTedros “Health & care workers..on the frontline of the COVID19 pandemic..are often under-protected and over-exposed”

“WHO estimates at least 115000health & care workers have lost their lives during COVID19.” (june 2021)

Now read again the letter👆of Global Nurses United, @DrTedros. Image

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More from @mdc_martinus

Maarten De Cock Profile picture
Oct 23
🧵February 7, 2020.

@DrMikeRyan on the cruise ship outbreak :
“Let’s be careful not to overreact..Remember, in SARS..this disease isn’t airborne..[😳]there was a great scare that this was airborne..It didn't turn out to be so..
a cruise ship is a very particular environment.”
Transcript of this press conference (PDF download): who.int/docs/default-s…
Image
Where to start... Well, what Mike Ryan claimed is pure science denial. Many scientific studies before the pandemic concluded that SARS showed airborne transmission and public health must take that into account. Even the WHO website (!) literally says: “SARS is an airborne virus”. Image
Read 8 tweets
Maarten De Cock Profile picture
Oct 19
“What is the right message?”

Febr. 10, 2020. CBS Chief Medical Correspondent @DrLaPook shows Anthony Fauci the article “Coronavirus is airborne, Chinese official confirm.”

“we will be reaching millions of people. I'd love to get the latest and greatest public health message.”🧵
Image
The article is correct and is based upon a press conference held on Feb. 8, 2020 by the Shanghai Municipal Government and confirmed that the new corona virus can be transmitted through aerosols and people may be infected by inhaling virus aerosols.

nzherald.co.nz/world/coronavi…
Image
We don’t know what Anthony Fauci told @DrLaPook, but the message, in complete contrast with the article they shared in private, was basically - don’t worry people, “we should be more concerned about the flu” and the crucial fact of airborne transmission is not mentioned. Image
Read 6 tweets
Maarten De Cock Profile picture
Sep 19
🧵“Rebreathing exhaled air has been considered to facilitate he spread of infection…”

“Many studies have associated high CO2 level with high probability of infection spread in indoor spaces.”

“The @WHO has *not* developed guidelines for indoor CO2”🤔

sciencedirect.com/science/articl…
Image
“The proposal to achieve CO2 levels of 1000ppm..will not only help achieve WHO guidelines for providing children with healthy indoor environments, it will also provide a low-cost intervention for helping control the TB epidemic in areas of high prevalence”
journals.plos.org/plosone/articl…
Image
“To estimate the risk of M. tuberculosis transmission inside public buildings..CO2 sensors were placed…”

“Measurements indicate that infection risk in the church, classroom and clinic waiting room would be high…”

ingentaconnect.com/content/iuatld…
Image
Read 11 tweets
Maarten De Cock Profile picture
Sep 7
Massachusetts, Act of 1888:

‘Every public building and every schoolhouse shall be ventilated in such a proper manner that the air shall not become so exhausted as to be injurious to the health of the persons present therein.’

The inspectors went from school to school with… 🧵
Image
…their 19th century portable CO2 meters: ‘air-testers’ made by the German Professor Wolpert.

If these tests showed insufficient ventilation, the inspector wrote an order and later revisited the school, tested the air again to see whether the ventilation was indeed improved. Image
In an annual report, I found how an inspector notes very poor ventilation (2900 ppm CO2) just when there is an outbreak of diptheria, which is airborne. Four boys die from it. The school is temporarily closed and an order for improved ventilation is written and executed. Image
Read 4 tweets
Maarten De Cock Profile picture
Jul 22
In the Journal of the Boston Society of Medical Sciences, anno 1896:

announcement of a method allowing portable CO2 meters “devised for practical use in school-rooms, factories and stores.”

“…can be carried in the pocket (…) to be used when desired.”

https://t.co/yn4wyeh276ncbi.nlm.nih.gov/pmc/articles/P…
Image
In an 1899 article, Dr. Fitz explains his new, practical method of measuring CO2 in more detail.

Some “ready methods” (no lab necessary) already existed, but they were or not accurate enough, or not fit for schools because they were “beyond the technical skill of the teacher”.🧵 Image
Take a look at that table 👇 used to determine the CO2 values ​​at the time. I have added the values ​​in ppm. Very recognizable, isn't it?

Yes, this is from the 19th century… Image
Read 7 tweets
Maarten De Cock Profile picture
Jul 28, 2022
People from the 18th century would find it hard to believe that in the 21st century there is controversy over the claim that a patient suffering from a virus closely related to smallpox, “communicates an infectious quality to the air that surrounds him.”

Written in 1784: Book title: ‘An inquiry how...
Source: books.google.be/books?id=4BdFA…
‘Dilution is the solution to pollution’, anno 1784: Image
Read 6 tweets

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