🔗 Comparing strategies for the mitigation of SARS-CoV-2 airborne infection risk in tiered auditorium venues nature.com/articles/s44172-024…
> …in general, positions in the near field of an emission source were at high risk, while the risk of infection from positions in the far field varied depending on the ventilation strategy. Occupancy, airflow rate, residence time, virus variants, activity level and face masks affected the individual and global infection risk in all venues.
Comparing strategies for the mitigation of SARS-CoV-2 airborne infection risk in tiered auditorium venues - Communications Engineering
Sophia Mareike Geisler and Kevin Harry Lausch with colleagues study the impact of ventilation strategies on the risk of COVID transmission.Nature
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<cw: don't read if you wish to remain calm>
The laissez faire way of handling sarscov2 infection and transmission described in this abomination of an article is everything that's wrong with how we've been told to deal with the ongoing pandemic. Complete negligence by the authorities ergo complete negligence by individuals
🔗 Tim Dowling: two of my sons are home – and have brought Covid with them theguardian.com/lifeandstyle/2…
Tim Dowling: two of my sons are home – and have brought Covid with them
Sitting at my kitchen table, waiting to be fed and watered, enjoying the pets, no housework. I wouldn’t mind being ill myselfTim Dowling (The Guardian)
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🔗 ‘We need Psychologists… but please don’t psychologise Long Covid’ bps.org.uk/psychologist/we-nee…
‘We need Psychologists… but please don’t psychologise Long Covid’
Dr Aspa Paltoglou hears from physician Dr David Joffe about what’s needed from our discipline; from Janina Bradshaw about what Psychotherapists can do; and from occupational therapist Kirsty Stanley.The British Psychological Society
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🔗 EPA Updates Ventilation Guidance to Prevent the Spread of Respiratory Viruses at Home, School, and Work epa.gov/newsreleases/epa-updat…
EPA Updates Ventilation Guidance to Prevent the Spread of Respiratory Viruses at Home, School, and Work | US EPA
EPA News Release: EPA Updates Ventilation Guidance to Prevent the Spread of Respiratory Viruses at Home, School, and WorkUS EPA
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🔗 Air Quality Monitor with Raspberry Pi 5, PMS7003, and Viam hackster.io/JoyceJetson/air-qu…
> Connect a particulate matter sensor to a Raspberry Pi to trigger a DIY air filtration system
#CleanAir #IAQ #CovidIsAirborne
Air Quality Monitor with Raspberry Pi 5, PMS7003, and Viam
Connect a particulate matter sensor to a Raspberry Pi to trigger a DIY air filtration system.Hackster.io
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more particles in a room do not increase Covid risk. More people do. Particles are not a good proxy for people. CO2 is. Better use a CO2 sensor.
That is not to say that particles do not matter. They do. They should be filtered out. They just don’t matter in the context of Covid.
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@hhf strictly speaking, the bioaerosols that carry sarscov2 virions are indeed particles -- albeit generally considered to be smaller than 2.5 microns -- and it is by filtering out these smaller particles with crboxes, hepa filters, and respirators that their concentration in a room and thus transmission events can be reduced. CO2 is merely a proxy, though beyond the acidity of the air it plays no direct role in the transmission of pathogens.
But I do understand the point you intended to make and for someone uninitiated in fluid dynamics and IAQ it's important to understand that a pm2.5 sensor doesn't identify the presence of airborne pathogens. The article itself doesn't invoke sarscov2 either, but swapping in a CO2 sensor is exactly what I had in mind in this context 👌
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Conspiracy of Silence?
There seems to be a conspiracy of silence around COVID. How did everyone get this memo but we didn't? We noticed it beginning a couple of years ago. This is how it goes:
No one can say they have COVID. If you mention that C word, people go quiet and change the subject or turn away, acting as though they haven't heard. You're allowed to say you have something (flu, summer cold, persistent cough, some virus) as long as you minimise it. If you see someone wearing a serious mask, pretend you haven't seen them. If someone asks you how you are when you're not well (with one of those mystery illnesses) you say you are feeling fine now. You pretend not to notice that so many people around you are falling sick. And you put down the rise in serious health issues in your friends to aging.
And no one talks about it. So I'm breaking the taboo. I'm saying it out loud.
@askazero
@auscovid19
#covidIsNotOver #CovidIsAirborn #Covid #NotInDenial #YallMasking
#EllieKPosts #conspiracy
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Canadians! Interested in helping out? (It's super quick)
COVID and flu monitoring
For the 2024-2025 surveillance season, the FluWatchers program continues to track cough and fever activity in the community, to help monitor flu, COVID-19, and other seasonal respiratory illnesses. The FluWatchers program gathers data on healthy participants as well as those experiencing cough and fever, so it's important that you try to answer the questionnaire each week whether you are healthy or sick. That will allow us to calculate more accurate rates of illness each week.
I just answered this week's FluWatchers survey! My weekly responses contribute to monitoring flu-like illness in my community. Help out by becoming a FluWatcher today! cnphi.canada.ca/fluWatcher/reg… #FluWatchers
#COVID #covisIsNotOver #YallStillMasking @auscovid19 @askazero
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That's great! The survey is super easy and quick, no trick questions, takes no more than a couple of minutes.
@askazero
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I’ve been filling out this survey for a couple of months and it’s literally 30 seconds or less to answer it - in case anyone is worried about not having enough time.
I just have two questions to answer every week: “do you have a fever?” and “do you have a cough” - options are “yes” or “no” or “I’m not sure”. That’s it.
If you haven’t had your latest Covid booster they may ask you about whether you’ve had it. Still super quick to answer.
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🔗 Many deaths attributed to natural causes during the COVID-19 pandemic may have instead been due to the virus nia.nih.gov/news/many-deaths-a…
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I have a Luggable from CleanAirKits.com. It's MERV-13 instead of HEPA, but similar very good purification and the computer-case-fans make it quiet.
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$40USD DIY fit testing kit by @philipn: fittests4all.bigcartel.com/pro…
Reviewed by @ghhughes: youtube.com/watch?v=-UEKtJRI4p…
#MaskUp #WearARespirator #CovidIsAirborne
Home fit testing kit!
** Note: kits will be back in 1-2 days after we catch up with shipping **. Check back in a couple days or add your info below to be contacted when...Home fit test kits & supplies
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A hypothetical scenario might be getting a very small infectious dose, the virus replicates a few times and just barely makes it to the detectable level, her body slaps it down, she tests negative again (and, one would hope, clears the virus for good). In theory, sometimes the immune system does rack up a swift and thorough win.
I dunno how likely it is.
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🔗 courier-journal.com/story/news…
> Louisville Mayor Craig Greenberg plans for Louisville Metro Police to begin enforcing a decades-old ordinance that makes wearing face coverings in public illegal in an attempt to curb gun violence, he said in a news conference Tuesday.
What is the mask ordinance to be enforced in Louisville? What we know
Louisville Metro Police will begin enforcing an ordinance from 1983 that makes wearing face coverings in public illegal. Here's what we know.Killian Baarlaer (Louisville Courier Journal)
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Sensitive content
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Sensitive content
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🔗 Understanding Cumulative Risk -- The health implications of repeated COVID infections longshadowofcovid.substack.com…
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"Two years ago, one of us (A.C.) made a prediction in Fortune Magazine that a few years of ‘learning to live with’ COVID (i.e., pretending it doesn’t exist) would lead to a billion cases of Long COVID. A recent estimate pegs the total incidence so far at 400 million cases of Long COVID. Long COVID is well on its way to becoming the world’s most common disease."
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Is there anything wrong with fear? Healthy fear has saved many lives. Think about it.
I get accused sometimes (or it's implied) that I'm living in fear as I take precautions to avoid catching COVID. I mask using a great quality N95, I avoid crowded locations, concerts, use curbside pickup, don't eat indoors in restaurants etc.
I do these things because I have chosen to educate myself about the risks (long-term as well as short term) of catching COVID, as well as the ways to mitigate those risks.
Is that living in fear? On the contrary. I can relax, knowing that as far as possible I am protecting myself according to the best scientific recommendations.
But I suppose it is a level of fear in the sense that my awareness has instigated these behaviors. I think of it as a healthy, informed fear. I have the same healthy fear of getting run over crossing the road. I have educated myself and know that crossing blindly, anywhere, without looking, will put me at risk of being hit by a car or truck. So this healthy fear makes me look for a crosswalk, press the button if there is one, and wait for the traffic to stop, before taking my life in my hands and stepping off the curb.
People would think I was stupid (and they would be right) if I ignored the risks, listened to the calm, authoritative voice of people, even friends, telling me that there is little chance a vehicle will be coming along this road at this time, so the risk is small, and I got hit. Is this living in fear? No one would think that.
So why is there not the same attitude to being fully informed and protecting yourself against a disease which continues to seriously affected the lives of hundreds of millions around the world and has even killed many millions?
It's a mystery. A bit like the 'mystery virus' affecting so many I know. Why are they all stepping blindly off the COVID curb, so many getting hit, so to speak? Because they don't want to know?
@askazero
@auscovid19
#covidIsNotOver #EllieKPosts #COVIDcautious #COVID #FearCanBeHealthy #healthyFear
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I never saw the reply to my post from that person as it was deleted on our server.
But thanks to all for the rational, science based replies.
@themaskerscomic @askazero
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WearyBonnie
in reply to trendless • • •I should start writing things.
@pandemicene
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Ellie Kennard
in reply to trendless • • •Meanwhile their king's wife stayed home from a ceremony with a 'seasonal chest infection' to avoid spreading it? The world has truly gone mad.
But I wish I had followed your advice as I am no longer calm. I better go pat a cat.
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KeepingMySanity
in reply to trendless • • •Pandemicene reshared this.
trendless
in reply to trendless • • •A couple of responses to Tim Dowling's article
🔗 theguardian.com/world/2024/nov…
@pandemicene
Covid is no laughing matter when it continues to hurt so many
Guardian staff reporter (The Guardian)Pandemicene reshared this.