Prof. Jose-Luis Jimenez Profile picture
Jan 16, 2022 11 tweets 6 min read Read on X
1/ Must read from Dr. Raina MacIntyre:

Key quotes:

"As for denial of the risk in children, the majority of vaccine-preventable diseases that we vaccinate children against are mild in most children. Only a small percentage suffer serious complications"

thesaturdaypaper.com.au/opinion/topic/…
2/ From @Globalbiosec:

"The denial of the airborne transmission was started by experts on @WHO IPC committee & allowed all countries to take the easy way out. If handwashing is all you need, onus can be shifted to “personal responsibility”...
3/ "... if ventilation needs to be fixed, that shifts responsibility to governments and private organisations."

"Denial of Omicron being serious suits exhausted community who wish life could go back to 2019. Omicron may be 1/2 as deadly as Delta, but D was 2x as deadly as 2020"
4/ "Denial of science of epidemiology is widespread, even among “experts”. We are told repeatedly that SARS-CoV-2 will become “endemic”. But it will never be endemic because it is an epidemic disease & always will be. No truly endemic disease – e.g. malaria – behaves that way"
5/ "This is the reason governments prepare for pandemics. The propensity for epidemics to grow rapidly can stress the health system in a very short time. Respiratory epidemic infections follow this pattern unless eliminated by vaccination or mitigated by NPIs".
6/ "Natural infection has never eliminated itself in recorded history. Not smallpox, which displayed the same pattern over thousands of years, and not measles, which is still epidemic in many countries."

By @Globalbiosec
7/ "Another outcome of these failures are unscientific theories being pushed in many countries – such as argument for “herd immunity by natural infection”, which has become a household narrative during the pandemic despite four pandemic waves providing little protection to date"
8/ "Many do not understand “public health” & equate it w/ provision of acute health care in hospitals or confuse it w/ primary care. PH is organised response by society to protect & promote health, & to prevent illness, injury and disability. It is core responsibility of govt"
9/ "what the past month has shown us is we cannot live with unmitigated Covid-19. Vaccinations will not be enough. We need a ventilation 7 vaccine-plus strategy to avoid the disruptive epidemic cycle, to protect health & economy, and to regain a semblance of the life we all want"
10/ The whole article is outstanding, please read it in its entirety. Thanks @Globalbiosec for summarizing so many inconvenient truths so well.

thesaturdaypaper.com.au/opinion/topic/…
11/ PS: if you want to read the great opinion piece by Dr. Raina MacIntyre (@Globalbiosec) discussed on my thread (), but are encountering a paywall, there is a PDF copy of the entire article at this link: drive.google.com/file/d/1g2dN46…

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More from @jljcolorado

May 26
1/ Survey of CO2 indoors during trip

CO2 (above ~400 ppm outdoors) indicates the amount of exhaled air (& virus) trapped in a space

Also per recent scientific results by @ukhadds, CO2 helps SARS-CoV stay infectious in air much longer

@united flight boarding, pretty terrible! Image
2/ This is the trip so far:

-Low outdoors
-Pretty high ~2000 in @RideRTD bus to airport
- ok ~800 at @DENAirport, except restroom ~1500. Not sure why restrooms at this airport are so often poorly ventilated
- Then boarding on @united, ventilation OFF, so huge increase till ON Image
3/ For details of the recent results on how and why CO2 makes SARS-CoV-2 stay infectious much longer in the air, see this recent thread by @ukhadds

Read 9 tweets
May 8
1/ "After four years of fighting about it, @WHO has finally proclaimed that viruses, including the SARS-CoV-2 virus that causes COVID, can be spread through the air"



By @maggiemfoxscientificamerican.com/article/a-figh…
2/ "It took four years to get here because some leaders in public health, medicine and science clung too tightly to precision and semantics"

"One particular moment of shame came on March 28, 2020, when WHO tweeted: “FACT: #COVID19 is NOT airborne.”

3/ "Words matter. When people heard that COVID might spread on surfaces, they wasted time wiping down groceries. People who misunderstood airborne spread needlessly wore masks on outdoor walks and veered off sidewalks to avoid their neighbors."
Read 7 tweets
Apr 18
1/ @WHO has published a report on updated terminology for disease transmission

I've seen some debate about it. My take:

- Terminology itself is ok. Big progress
- But no recommendations of how to protect!

Report:

Press release: who.int/publications/m…
who.int/news/item/18-0…
2/ The report was likely the result of intense pressure on @WHO during the pandemic:

- They denied that #COVIDIsAirborne on March 2020
- They finally accepted it 2 years later

nature.com/articles/d4158…
@WHO 3/ To their credit, @WHO did invite some of their critics to be part of the committee.

What was the terminology before. In medical circles:

- droplet transmission: if it happened in close proximity, or if particles were > 5 microns

- airborne transmission: if it happened far
Read 34 tweets
Mar 28
1/ New paper in @ScienceMagazine: "Mandating Indoor Air Quality for Public Buildings"

Explaining current status of indoor air quality standards (in short: bad or non-existent), the huge health benefits that would arise from them & proposing a path forward
science.org/doi/10.1126/sc…
Image
2/ "People living in urban & industrialized societies, which are expanding globally, spend more than 90% of time indoors, breathing indoor air (IA)."

"Most countries do NOT have legislated indoor air quality (IAQ) performance standards for public spaces"

science.org/doi/10.1126/sc…
3/ "Few building codes address operation, maintenance, and retrofitting, and most do NOT focus on airborne disease transmission."

"We propose that Indoor Air Quality (IAQ) standards be mandatory for public spaces"

science.org/doi/10.1126/sc…
Read 14 tweets
Oct 4, 2023
1/ Checking the ventilation by measuring CO2 as I travel to the #AAAR2023 conference

@RideRTD bus to Denver airport. Bus route had started 3 min before I got in, already 1500 ppm

Typical of these @RideRTD buses, poor ventilation Image
2/ Not getting any better as time passes in the @rideRTD bus to the airport...

7% of the air is being re-breathed, it has already been in someone else lungs when each of us breathe it. Image
@RideRTD 3/ Given the often poor-to-mediocre ventilation in US transportation systems, I wear N95 masks (not KN95, less good)

In this case @3M VFlex, which I tested at 99.99% filtration for myself

It also stays sealed when I talk, doesn't distort my speech (& add to my Spanish accent) Image
Read 14 tweets
Oct 2, 2023
1/ Video de mi presentación sobre "Transmisión de enfermedades por el aire: cómo funciona, por qué se malentendió, y cómo reducirla"

como parte de la presentación del libro de ventilación de @aireamos

2/ Las diapositivas se pueden bajar de este enlace.

(Son de una charla más larga así que tienen más detalles, pero están todas las de la presentación de @Aireamos)

drive.google.com/file/d/1Bs0RRG…
@aireamos 3/ Miguel Ángel Campano @MA_Campano y @Aireamos han sido los motores del libro de ventilación:

Read 4 tweets

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