Renae Crossing @renaecrossing
scientist - biochemist - writer | views own | seen @ASBMB @3MT_Official @AsingStarTrans7 @uowSCP | she/her | I love naps, puns & people 🍂 #CovidIsAirborne renaecrossing.com The Netherlands Joined May 2017-
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In terms of total aerosolized viral load, this means that after 40 minutes, more than 10x the amount of virus remains infectious in the air as a result of an increase in CO2 concentration. This will have a massive effect on the risk of transmission in a poorly ventilated space.
When exhaled, the aerosol will reach a very high pH (>10) in 10s of seconds due to the dissolved CO2 (HCO3) leaving the droplet. The equilibrium shifts right, causing the acid (H3O) in the droplet to lower, resulting in a pH rise.
1/ A very important finding from the Bristol group: higher CO2 indoors makes the SARS-CoV-2 virus survive much longer in air Makes ventilation more important, transmission goes approx. with its square, not just linearly
1/ A very important finding from the Bristol group: higher CO2 indoors makes the SARS-CoV-2 virus survive much longer in air Makes ventilation more important, transmission goes approx. with its square, not just linearly
TIME's list of the 100 Most Influential People in the world is out. I'm honored, delighted, and grateful to be a part of this incredible group #TIME100 🙏🏼🙏🏼🙏🏼 @TIME time.com/6964230/akiko-…
I wish there was research into this strange and extremely common #LongCovid symptom. People feel like they have to breathe manually.
5/ A concrete PROPOSAL for new indoor air quality standards: - For PM2.5, CO2, and CO, which low-cost advanced sensors have demonstrated stability, durability, and robustness - Also ventilation rate PER PERSON science.org/doi/10.1126/sc…
🚨 Indoor AIRBORNE Risk Assessment in the context of SARS-CoV-2 from the World Health Organisation (@WHO) For clean air advocates, this is HUGE! The WHO are finally saying, loud & proud: COVID IS AIRBORNE. Let’s take a closer look at the details…🧵 🔗 iris.who.int/handle/10665/3…
anne hathaway on acting — and i think it applies to all forms of art, or at least feels resonant to me with writing: if i’m not reaching somewhere mysterious myself, how could i hope to surprise you? you’re offering your attention, the least i can do is point it somewhere worthy.
The evidence for use of portable air cleaners mounts. From a Study of Air Cleaners in Finnish Childcare: Those at risk reduced by 50-60% and parental absence due to caring for sick children reduced by >30%. 👇 sciencedirect.com/science/articl…
This work shows the power of curiosity-driven science to lead to surprising results with the potential for medical implications. Also, the discovery came from a real “Night science” attitude on the part Bo Xia – an absolutely amazing scientist. @nightsciencepod
Elated to share that I've joined the Icahn School of Medicine at Mount Sinai as Director of Science Communication at CoRe! I'm building a spectrum of educational programs and resources for Long COVID, ME/CFS, Chronic Lyme, and hEDS. Teaming up with @microbeminded2 @PutrinoLab! 🫶🏿
Elated to share that I've joined the Icahn School of Medicine at Mount Sinai as Director of Science Communication at CoRe! I'm building a spectrum of educational programs and resources for Long COVID, ME/CFS, Chronic Lyme, and hEDS. Teaming up with @microbeminded2 @PutrinoLab! 🫶🏿
Solving the puzzle of #LongCovid @ScienceMagazine today, @zalaly and I review what we know and what needs to be done science.org/doi/10.1126/sc… w/ @ScienceVisuals @ashleymastin_ + thanks @AldertonBiol for expert editing
The long-awaited NIH study has just been published. Deep phenotyping of post-infectious myalgic encephalomyelitis/chronic fatigue syndrome nature.com/articles/s4146…
this is transcendent honestly
this is transcendent honestly https://t.co/ZYu3KE9iT6
The plasma proteins that predict future dementia in healthy adults even more than 10 years before diagnosis, from >52,000 @uk_biobank participants and assessment of >1,400 proteins (especially GFAP) nature.com/articles/s4358… @NatureAging
This is the images source paper sciencedirect.com/science/articl… The most interesting part is the different biomarkers for symptom clusters, with black being the best candidates. Shows immune exhaustion fighting off a virus. Shows some immune markers are strong biomarker candidates
An historic moment yesterday as we started @IcahnMountSinai's first ever course for med students about infection-associated complex chronic illness. We discussed #LongCOVID, #MECFS, chronic #Lyme and much more. Students were intrigued, inquisitive and eager for more!
BTW those results are totally consistent with our prior paper showing that the attack rate of superspreading events depends on the riskiness of the situation, and can be mitigated effectively with non pharmaceutical interventions x.com/jljcolorado/st…
BTW those results are totally consistent with our prior paper showing that the attack rate of superspreading events depends on the riskiness of the situation, and can be mitigated effectively with non pharmaceutical interventions x.com/jljcolorado/st…
@GaloresCircus I’m sharing the Sloan Kettering library page because it’s succinct, well referenced and up to date. It’s one of the best I’ve seen. Kudos to the librarian who maintains this!! See libguides.mskcc.org/CovidImpacts
Dr Rachelle Balez👩.. @chellebalez
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3K Followers 992 Following We envision a world with compassionate care, effective support, and a future free of FTD #endFTDIt took me 3 years to get my vertigo from an 8 to a 1. Nowadays it’s more like a 0.05. Every once in a while I get a quick swoosh, but I can handle those moments easily. Unfortunately my tinnitus was tenacious and it’s still a loud, constant squeal. I’ve accepted it. 8/
So. There are kids in the local schools here sick with Covid right now. Off sick. Not just a cold, but proper in bed wiped out.
This week the UK government published the results of a survey that say that TWICE AS MANY children in England and Scotland are suffering Long Covid now than a year ago.
"Contemporary built environments are steadily reducing the microbial diversity essential for human health, well -being, and resilience while accelerating the symptoms of human chronic diseases including environmental allergies, and other more life-altering diseases."…
I don’t care what anyone says, “I feel fine but my wife made me come in” has a positive predictive value for something being really fucking wrong that approaches 100%
🧠🔥Brains on fire... "'My daughter's personality changed overnight - every parent needs to know the cause'" *Everyone* should know about the risk of PANS/PANDAS. So many kids going through this right now. devonlive.com/news/devon-new…
In terms of total aerosolized viral load, this means that after 40 minutes, more than 10x the amount of virus remains infectious in the air as a result of an increase in CO2 concentration. This will have a massive effect on the risk of transmission in a poorly ventilated space.
This data shows that the concentration of CO2 has a dramatic effect on how the aerosolized viral load will accumulate. Over longer periods of time at high CO2, the rate in which the virus becomes inactivated gets slower (after 20 mins only a subtle change in viral infectivity)
It has become popular to use CO2 monitors to estimate risk. This is based upon the idea that the CO2 informs about how well a space is ventilated. From our study, the results show that the levels of the CO2 will also inform about how long the virus remains infectious in the air.
Elevated CO2 concentrations in the atmosphere limit the degree the equilibrium goes right. Thus, excess CO2 will affect the maximum pH the aerosol reaches. The virus is sensitive to the pH in this region (>10); any subtle change in pH can have a large effect in aerostability.
When exhaled, the aerosol will reach a very high pH (>10) in 10s of seconds due to the dissolved CO2 (HCO3) leaving the droplet. The equilibrium shifts right, causing the acid (H3O) in the droplet to lower, resulting in a pH rise.
"'Unsustainable’: UK predicted to see 50% spike in strokes" Weird how so many of them come straight after a covid infection, but they completely fail to mention that. 🙄🤬 theguardian.com/society/2024/a…
Who is still doing public health? @YaleSPH is.
. @WHO Webinar on POTS and post #COVID19 condition (#LongCOVID) on Wed April 24 & Fri Apr 26 Postural Orthostatic Tachycardia Syndrome (POTS) has emerged as a common presentation in post COVID-19 condition. Join us to learn more. Register here: iecho.org/public/program…
@keithgeraghty @RCPhysicians @bodgoddard @NICEComms If by “social mystique” they mean losing all your friends, being abandoned by your partner, distrusted by everyone, and left to suffer alone in poverty, ok sure. What a glamorous lifestyle!
And so on top of the actual decline, they also have anger and sadness.
@AndrewHewat Area under the curve ... 🙄🙅♀️🤦♀️
@carlzimmer @nytimes 13/ So overall, while not perfect, and with that awkwardness that can often arise of a "written by a large committee with strong internal disagreements", I view this as progress @WHO still has not apologized for their huge errors. I hope they do one day. But this is progress