Share this page!

Jose-Luis Jimenez Profile picture
Twitter logo
24 Feb, 4 tweets, 2 min read
@CDCgov: proper ventilation indoors can cut down the spread of COVID-19. But how can you tell if a space is well ventilated?

"One thing that's practical, with limited costs, and that is very useful, is to measure CO2"

wyomingpublicmedia.org/post/fresh-ind…

By @maggiemlln
2/ For more details on the usefulness and caveats of using CO2 to monitor relative infection risk, see Section 9 of our Scientist's FAQs:

tinyurl.com/faqs-aerosol
3/ For the gory details, see our preprint:

medrxiv.org/content/10.110…
#covidCO2

• • •

Missing some Tweet in this thread? You can try to force a refresh
　

Keep Current with Jose-Luis Jimenez

Jose-Luis Jimenez Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @jljcolorado

Jose-Luis Jimenez Profile picture
24 Feb
1/ Aranet4 has created a very simple system to display the CO2 measurement in a large screen (smart TV) in public locations. This type of public display of CO2 should be required by law **in all public locations where we share air**. During the pandemic and later too.

#covidCO2 Image
2/ Because high CO2 and bad ventilation facilitate the transmission of respiratory diseases such as COVID-19, but also flu, colds (other coronaviruses, rhinovirus). And also e.g. measles, which is an issue again due to lower vaccination rates.

So this should be done permanently
3/ And also for reasons of health related to indoor air quality (air toxics, radon etc.).
Read 4 tweets
Jose-Luis Jimenez Profile picture
23 Feb
1/ US Nurses, Unions, Allies Urge CDC to Acknowledge Covid-19 Aerosol Transmission to Help Bring Virus Under Control

aft.org/press-release/…

@rweingarten
2/ National Nurses United (NNU) and 44 allied unions and organizations, representing over 13 million members and their communities, are joining in coalition to urge the U.S. Centers for Disease Control and Prevention (CDC) to update its Covid-19 guidance to fully reflect the...
3/ latest scientific evidence regarding SARS-CoV-2 transmission through aerosols that infected people emit when they breathe, speak, cough, sneeze, or sing.
Read 12 tweets
Jose-Luis Jimenez Profile picture
21 Feb
1/ La principal fuente de contagio de la COVID es la transmisión por el aire ("por aerosoles")

Es hora de q los distintos gobiernos, así como organismos como la OMS, lo reconozcan y creen guías de sanidad pública que ayuden a la ciudadanía a protegerse mejor

#CovidEstaEnElAire
2/ Una medida muy fácil de aplicar y de explicar es el ajuste de la mascarilla. Tan importante como llevar una mascarilla de buena calidad.

En este video se ven fugas cuando las mascarillas (incluyendo FFP2 orejeras y quirúrgicas) están mal ajustadas.

#CovidEstaEnElAire
3/ Otra medida completamente factible es la ventilación. Abrir las ventanas es gratis, y en muchos sitios es suficiente abrirlas un poco, con el principio CDDM:

- Cruzada
- Continua
- Distribuida
- Medida

#CovidEstaEnElAire

Read 13 tweets
Jose-Luis Jimenez Profile picture
21 Feb
Una buena iniciativa de @elcorteingles. Pero no muy bien ejecutada. Esos niveles de CO2 no se han visto ni al aire libre desde 1960!

Ahora al aire libre hay 415 ppm, y en interiores siempre más.

Por favor arreglen estos medidores.
Para ver el registro de CO2 al aire libre (remoto) va. ajo, ver e.g.:

e360.yale.edu/features/how-t…
Imagino que es un error inocente por ser novatos en esto del #covidCO2. Pero importante que lo arreglen deprisa y verifiquen regularmente que funcionan bien. Si no en vez de dar confianza, la quita. E.g. comparando con un medidor portátil calibrado al aire libre como el Aranet4
Read 7 tweets
Jose-Luis Jimenez Profile picture
21 Feb
1/ Seis meses despues de mi Tribuna en el @el_pais (a la vez en inglés en @TIME magazine), es de locos que todavía tengamos que luchar por esto

Es obvio que la COVID se transmite por el aire. Pero la OMS @WHO, @sanidadgob, etc. siguen sin explicarlo claramente, gente confundida
2/ Se sigue desperdiciando gran cantidad de dinero en desinfectar.

Se me cayó el alma a los pies hablando con un Dpto. de educación de gran ciudad. Habían gastado una fortuna en limpiadores y desinfectantes. CERO en ventilación, medir CO2 etc.
3/ Dpt. Educ: "Mucha desinfección para hacer que los padres se sientan seguros llevando a sus hijos a la escuela."

Realidad: teatro de higiene, dando a los padres una FALSA sensación de seguridad, mientras exponen a las familias al contagio de COVID, sin tomar medidas reales.
Read 7 tweets
Jose-Luis Jimenez Profile picture
21 Feb
Six months after my Op-Ed in @TIME Magazine, it is shocking that the are still having to continue to fight this battle.

It is now obvious that #COVIDisAirborne, but @WHO, @CDCgov, & many health ministries continue to drag their feet. Don't say it clearly, ppl not well protected
2/ Many governments continue to waste large amounts of money and time in surface disinfection.

I was really saddened when talking to the Education Dept. of a very large city (in South America, about to start academic year). They had spent a fortune on cleaners and disinfectants.
3/ This city that had spent a fortune on disinfectants, had spent ZERO on ventilation, CO2 monitors, better masks etc.

They were disoriented when I asked them about it. @WHO has done a terrible job, obfuscating and disinforming about transmission.
Read 7 tweets

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!

Like this author's thread?

Get emails when @jljcolorado has new unrolls!

Check out other threads from @jljcolorado!

Read all threads by @jljcolorado