コロナパンデミックで進んだ空気感染(=airborne transmission)の概念｜空気感染が否定されてきた歴史(2022.8.25作成) #エアロゾル #新型コロナウイルス #水疱瘡 #麻疹

Prof. Jose-Luis Jimenez @jljcolorado

1/ What are the REASONS for early DENIAL & continuing RESISTANCE & obfuscation by @WHO, @CDCGov & Other Public Health to the fact that #COVIDisAirborne? We just published a paper on the contribution of history. Which is important, but NOT most important onlinelibrary.wiley.com/doi/10.1111/in…

Prof. Jose-Luis Jimenez @jljcolorado

2/ Yesterday I wrote a 133 tweet thread explaining our recent paper and most of the history. Some people think it is too long to read, and that it doesn't do justice to the main reason. So this (hopefully shorter) thread tries to address that. twitter.com/jljcolorado/st…

Prof. Jose-Luis Jimenez @jljcolorado

1/ What were the historical reasons for the resistance to recognizing airborne transmission during the COVID-19 pandemic? Our peer-reviewed open-access paper is now published: onlinelibrary.wiley.com/doi/10.1111/in… pic.twitter.com/ainqOsT2cA

2022-08-24 01:20:06

Prof. Jose-Luis Jimenez @jljcolorado

3/ IMHO, the reasons for the denial, resistance and obfuscation of #COVIDisAirborne by @WHO @CDCgov etc. are: (a) Politics and economics. Droplets and surfaces are VERY convenient to those in power. All the responsibility is on the individual. telegraph.co.uk/global-health/… pic.twitter.com/8PMGlWJl0b

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Prof. Jose-Luis Jimenez @jljcolorado

4/ #COVIDisAirborne is VERY inconvenient to those with POLITICAL POWER and to the larger ECONOMIC INTERESTS (e.g. large corporations) that have the most influence on them. It scares ppl, who'd consume (e.g fly) less, and requires expensive measures. telegraph.co.uk/global-health/… pic.twitter.com/bjpIKPwgbY

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Prof. Jose-Luis Jimenez @jljcolorado

5/ We know how political and economic power deals with INCONVENIENT SCIENCE. They deny, resists, obfuscate and delay as much as feasible. Prime example is climate change. We have known for many decades, yet the fossil fuel industry and allies (~20% of World GDP) stalls progress

Prof. Jose-Luis Jimenez @jljcolorado

6/ But if it had been SCIENTIFICALLY CLEAR from the start that #COVIDwasAirborne, and it was WIDELY ACCEPTED by Public Health and Infectious Disease scientists... those in power could not have resisted change as successfully as they have managed to do until now.

Prof. Jose-Luis Jimenez @jljcolorado

7/ So why wasn't it clear. These are the other key reasons: (b) History set up a bad situation over a century (c) When it became clearer and clearer that @COVIDwasAirborne, saving face by those in power in Public Health and Infectious Diseases became a critical driver too

Prof. Jose-Luis Jimenez @jljcolorado

8/ Some people were replying to yesterday's thread saying that PH and ID people KNEW early in the pandemic that it was airborne, and chose to hide it. I disagree. I think the overwhelming majority of PH and ID were genuinely confused and thought airborne was totally wrong

Prof. Jose-Luis Jimenez @jljcolorado

9/ We met with the @WHO officials & IPC committee in Apr 2022. The Chairman of the @WHO IPC committee YELLED at us. They thought that suggesting that #COVIDwasAirborne was just crazy. This (great) article in @WIRED recounts some of those discussions: wired.com/story/the-teen…

Prof. Jose-Luis Jimenez @jljcolorado

10/ Months later, in July 2020, another @WHO IPC committee member (@metadoc) said in an interview that we didn't know what we were talking about, and hinted at us having an economic interest to promote airborne. livescience.com/coronavirus-ai… [An apology would be nice some day] pic.twitter.com/Sl3v4yRFUF

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Prof. Jose-Luis Jimenez @jljcolorado

11/ Also in July 2020 (which is when we came out with the "letter of 239 scientists" about #COVIDisAirborne nature.com/articles/d4158…) the @WHO staff member in charge of IPC (@allegranzib) told @Nature that we didn't know what we were talking about (more politely, of course) pic.twitter.com/bPv64ouiDq

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Prof. Jose-Luis Jimenez @jljcolorado

12/ So I do believe that they really were stuck in the scientific error that's #DropletDogma, and couldn't see past it. But things started to change in late 2020, and faster and faster afterwards.

Prof. Jose-Luis Jimenez @jljcolorado

13/ As enormous scientific evidence for #COVIDisAirborne accumulates, those in charge at @WHO @CDCgov start to realize that #COVIDisAirborne. E.g. @WHO officials start promoting ventilation without explaining the reason. twitter.com/jljcolorado/st… youtube.com/watch?v=XJC1f7…

Prof. Jose-Luis Jimenez @jljcolorado

1/ @WHO ADMITS AEROSOL TRANSMISSION IS IMPORTANT (without actually saying it) This press conference from @mvankerkhove is very useful and maddening at the same time. She describes measures that ONLY work to control aerosols. pic.twitter.com/dr1nuGxm6s

2020-11-03 00:02:47

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Prof. Jose-Luis Jimenez @jljcolorado

14/ @WHO officials knew perfectly well that ventilation ONLY works for airborne transmission. Does NOTHING for droplets or surfaces. They stated this to a journalist (@MeganMolteni) later! wired.com/story/the-teen… pic.twitter.com/QFig3HwT2F

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Prof. Jose-Luis Jimenez @jljcolorado

15/ @CDCgov Chief Medical Officer J. Brooks had given a talk to the US Nat. Acad. Sci @theNASEM in Summer 2020, describing: - droplets as large / fall to the ground, limited by gravity - aerosols as small / float in air, are inhaled nationalacademies.org/event/08-26-20… pic.twitter.com/MFai9DwsG3

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Prof. Jose-Luis Jimenez @jljcolorado

16/ @CDCgov even posted in their website that #COVIDisAirborne in Sep. 2020. But that was removed after 3 days, and replaced by big picture obfuscation (even if many sci. details are correct), which continues to date I wrote this thread at the time: twitter.com/jljcolorado/st…

Prof. Jose-Luis Jimenez @jljcolorado

1/ Understanding CDC’s updated guidance that aerosols are the main mode of SARS-CoV-2 transmission CDC recently updated its guidance. It is worded in a confusing way & this makes it a little self-contradictory. This is causing some confusion, so I’ll try to explain it here

2020-09-21 14:45:48

Prof. Jose-Luis Jimenez @jljcolorado

17/ Since, @CDCgov has resorted to describing the science more correctly, but calling aerosols "respiratory droplets". Which contradicts what they told @theNASEM months before, and the whole history of the field. They avoid saying airborne like the plague

Prof. Jose-Luis Jimenez @jljcolorado

18/ Why do @WHO @CDCgov and PH worldwide avoid admitting that #COVIDisAirborne (as much as feasible)? Partially is again (a) politics and economics. Many US hospitals are for-profit and hold huge sway at @CDCgov. They HATE airborne with a passion, because it costs $$$$ to them

Prof. Jose-Luis Jimenez @jljcolorado

19/ For @WHO, there may be some of that, but they also worry about lower income countries. I head from a colleague who works there that they fear those small budgets would be "Wasted" on ventilation, if they said loud & clear that #COVIDisAirborne.

Prof. Jose-Luis Jimenez @jljcolorado

20/ I.e. top @WHO Officials think other priorities are more important, but that pressure would be irresistible to spend on ventilation (& N95 etc.), if @WHO admitted publicly #COVIDisAirborne You won't see "airborne" in their extensive Twitter feed: twitter.com/search?q=airbo…

Prof. Jose-Luis Jimenez @jljcolorado

21/ Sorry, I have to take a break to take our kid to the dentist. He may need to get braces but he is not happy about it. I will continue the thread later today I hopefully can keep it below 35 or 40 tweets

Prof. Jose-Luis Jimenez @jljcolorado

22/ So the MAIN reason we are stuck now with resistance and obfuscation, now that the science is clear to ALMOST ALL SCIENTISTS is... that the protective measures needed to reduce transmission when #COVIDisAirborne are VERY UNDESIRABLE to political and economic power (cost $$ $)

Prof. Jose-Luis Jimenez @jljcolorado

23/ @WHO and @CDCgov and ministries of health (e.g. @sanidadgob) are first and foremost POLITICAL organizations. If there is conflict between science and politics, POLITICS ALWAYS WINS. And those in power HATE the cost & impact of protective measures needed for #COVIDisAirborne

Prof. Jose-Luis Jimenez @jljcolorado

24/ But that's not the whole reason why @WHO @CDCgov obfuscate on #COVIDisAirborne There is reason (c): (c) When it became clearer and clearer that @COVIDwasAirborne, saving face by those in power in Public Health and Infectious Diseases became a critical driver too

Prof. Jose-Luis Jimenez @jljcolorado

25/ E.g. @WHO told us loud and clear in March 2020 (when we were ALL learning like sponges & willing to do anything to protect ourselves) that: - UNPROVEN mechanisms (droplets & surfaces) were DOMINANT - #COVIDisAirborne was MISINFORMATION twitter.com/WHO/status/124…

World Health Organization (WHO) @WHO

FACT: #COVID19 is NOT airborne. The #coronavirus is mainly transmitted through droplets generated when an infected person coughs, sneezes or speaks. To protect yourself: -keep 1m distance from others -disinfect surfaces frequently -wash/rub your 👐 -avoid touching your 👀👃👄 pic.twitter.com/fpkcpHAJx7

2020-03-29 03:44:17