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Prof. Jose-Luis Jimenez Profile picture
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15 Jan, 4 tweets, 3 min read
The BEST and CLEAREST short article I have read about AIRBORNE transmission of COVID: why history led to it's denial, and what to do about it

By @crackedscience

HT @KimABowie & @JANEMCARTHUR11
mcgill.ca/oss/article/co…
If you want more details on the history, the short version in that article summarizes this preprint of ours:

papers.ssrn.com/sol3/papers.cf…

In review, will hopefully pass peer-review soon
And a summary of the history and the early pandemic in this excellent article by @MeganMolteni in @WIRED, that reads like a detective story:

wired.com/story/the-teen…
Traducción del artículo al español / castellano (y un hilo corto con una selección de puntos clave):

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More from @jljcolorado

Prof. Jose-Luis Jimenez Profile picture
16 Jan
1/ El artículo CORTO MEJOR y MÁS CLARO que he leído sobre la transmisión por el aire de COVID-19:

- Por qué la historia llevo a la OMS a negarla
- Cómo protegernos

Traducción automática del artículo de @crackedscience

www-mcgill-ca.translate.goog/oss/article/co…
2/ "El 28-Mar-2020, al comienzo de la pandemia, la OMS @WHO tuiteó : “HECHO: #COVID19 NO se transmite por el aire”.

"Para los médicos y científicos biomédicos (incluyéndome a mí), esto tenía sentido. Se sabía que pocas enfermedades se transmitían por el aire."
3/ "Pero para los científicos de aerosoles, esto era a la vez desconcertante y exasperante."

"En siguientes 2 años, OMS y otras organiz. q inicialmente habían negado q el nuevo coronavirus pudiera permanecer en el aire y moverse como el humo cambiaron silenciosamente su postura"
Read 12 tweets
Prof. Jose-Luis Jimenez Profile picture
16 Jan
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"
Read 10 tweets
Prof. Jose-Luis Jimenez Profile picture
14 Jan
1/ ¿Dónde y cómo es más probable contagiarse de covid-19?

Nuestro blog en @Conversation_E explicando el reciente artículo en @EnvSciTech, donde mostramos q el supercontagio se debe a aire compartido en interiores, "para todos los públicos"

theconversation.com/donde-y-como-e…
2/ Escrito por @trishgreenhalgh (Investigadora Médica en @UniofOxford y miembro de @theNAMedicine) con la q colaboramos para el artículo de @EnvSciTech, con contribuciones de @ShellyMBoulder, @ZheP_AtmChem, y un servidor.

Original English version here:

theconversation.com/heres-where-an…
3/ Si alguien quiere más detalles, leer el hilo q escribí explicando el artículo de @EnvSciTech:

Read 8 tweets
Prof. Jose-Luis Jimenez Profile picture
13 Jan
Fact Check: Does COVID-19 Lose 90 Percent Infectiousness in 20 Minutes?

"We should definitely be wary of any tabloid headlines using the paper to urge us back to the office prematurely"

A good summary

iflscience.com/health-and-med…

@IFLScience
2/ Short version:

- Lab preprint very interesting for scientists, doesn't make wild real-world claims

- Taken at face value, preprint results contradict lots of real-world epi data

- Nevertheless @Guardian did just that, as if lab preprint results were the truth in real world
3/ @Guardian article reprinted, exaggerated more elsewhere to say that airborne transmission doesn't matter

When we know that superspreading events are airborne & major importance (nature.com/articles/d4158…). 1 event (Wuhan wet market) gave us pandemic

Read 7 tweets
Prof. Jose-Luis Jimenez Profile picture
11 Jan
@JudeJack @trishgreenhalgh The experiments are very elegant, but I think the conclusions are overstretched. We have many superspreading events where we see shared-room airborne transmission (). And superspreading is very common (10% of infected --> 80-90% of new infected)
@JudeJack @trishgreenhalgh One issue is that they are not real respiratory aerosols but surrogates, and we know that the chemical composition of the droplets is very important (nytimes.com/interactive/20…).
@JudeJack @trishgreenhalgh Also this study suggests that infection should go down A LOT in dry periods. But e.g. we found in a study in Argentina (led by @apinedarojas and @KropffLab) that DRY periods were the ones that had the most infection.

pubs.acs.org/doi/10.1021/ac…
Read 9 tweets
Prof. Jose-Luis Jimenez Profile picture
11 Jan
1H/ The new #COVIDHallofHumor

As many of your know we have started 2 ongoing threads of good and bad practices worldwide against COVID transmission

- #COVIDHallofShame:

- #COVIDBestPractices:
2H/ The good examples are much more fun to compile, but unfortunately there seem to be many more bad examples everywhere.

So inspired by tweet by @microlabdoc, I thought it may be good (at least for our mental health) to start a #COVIDHallofHumor

Pls submit by adding that tag
3H/ UK 🇬🇧: Here we see @microlabdoc demonstrating a new method to clean the air of viruses

Cheap and easy. Only need pins, a scarf, disinfectant wipes, and work that you really want to avoid for the next 30 min!



#COVIDHallofHumor
Read 8 tweets

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