🔗 Wearing a mask while exercising indoors improves lung function -- masks not only help protect wearers from virus transmission, but improve the exercise experience in both dry and cold conditions ualberta.ca/en/folio/2025/02/w…
Wearing a mask while exercising indoors improves lung function
Face masks not only help protect wearers from virus transmission — they can also help ease the workload on the lungs during exercise in both dry and cold conditions, a U of A study shows.Michael Brown (Folio - University of Alberta)
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Edit: @ABScientist shared ccnse.ca/sites/default/files/F… !
hey Covid-Competent, well-informed folks! I have a favour to ask!
has anyone bookmarked a good reference for what % of SARS-CoV-2 cases are due to fomite transmission?
the US CDC was at one point saying:
each contact with a contaminated surface has less than a 1 in 10,000 chance of causing an infection [1]
but that's not a % of infections, it's per contact with contaminated surface. That's supported a few ways, eg. by a sampling that included counting touchpoints:
The estimated risk of infection from touching a contaminated surface was low (less than 5 in 10,000) by quantitative microbial risk assessment [2]
but that study didn't actually culture virus, they checked RNA levels and counted touches (and again, is per contaminated touch, not per case)
Try as I might, I can't actually find a grounded estimate of how many actual infections have been fomite-driven at any point in the SARS-CoV-2 pandemic.
[1] archive.cdc.gov/www_cdc_gov/co…
[2] pmc.ncbi.nlm.nih.gov/articles/…
#SARSCoV2 #COVID #COVID19 #COVIDIsAirborne #CovidIsNotOver #CovidCompetent #AirborneAware
Coronavirus Disease 2019 (COVID-19)
CDC provides credible COVID-19 health information to the U.S.Centers for Disease Control and Prevention
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Took a quick look and this is the best I could find. The others kind of vague/hand wavey "it lasts on surfaces for x days" stuff
pubs.acs.org/doi/10.1021/acs.e…
German summary pointed out big picture which is that you can find it on surfaces but transmission is very inefficient.
bfr.bund.de/en/service/frequen…
Can SARS-CoV-2 Be Transmitted Via Food And Objects?
The German Federal Institute for Risk Assessment (BfR) has updated his most important questions and answers on the topic.Bundesinstitut für Risikobewertung
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And the virus won't go through the skin, so for transmission people first need to touch their mouth, inside of their nose or eyes. Maybe some transmission is possible by first touching food and eating it? Then there is still the acid of the stomach. It all does not sound like very efficient transmission if you can also just breathe it in.
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🇺🇸 🧑⚖️
Does anyone have recommendations for a USian called for jury duty if they're prevented from masking up?
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i havent gotten a mutual aid donation in almost two weeks. fuck these bots, i need rent, you know im real because my reputation precedes me.
$366/2500
Venmo | Rachael Arbor
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🔗 “I pretty much haven't worked since 2020”: How the effects of Long COVID have harmed professional musicians and DJs musicradar.com/music-industry/…
“I pretty much haven't worked since 2020”: How the effects of Long COVID have harmed professional musicians and DJs
Though the 2020 COVID pandemic had many negative effects on the music industry, an underreported aspect is how Long COVID has left some professional musicians unable to continue with their careersAdam Douglas (MusicRadar)
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FTtP's gSheet of quantitative fit test results, protocols, suggested test sequence, etc
mstdn.science/@FitTestThePlane…
@FitTestThePlanet @fittestmyplanet @maskup
#YallMasking #MaskUp #WearARespirator #BringBackMasks
Fit Test The Planet (@FitTestThePlanet@mstdn.science)
https://docs.google.com/spreadsheets/u/0/d/1arv8PObW_O4HMpScei3KAlt0zj1C55v_/htmlviewmstdn.science
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“One thing that can make a significant difference in reducing illness is masking,”“While it received mixed reactions...one of the greatest missed opportunities in public health...has been acknowledging the effectiveness of masks at reducing spread of airborne illness.”
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🇨🇦 CSA Z94.4:25 -- Selection, use, and care of respirators, draft review (comments open June 20, 2025 - Aug 19, 2025)
This Standard sets out requirements for the selection, use, and care of respirators and for the administration of an effective respiratory protection program in the workplace.
publicreview.csa.ca/Home/Detai…
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🔗 Respirator Types and Use cdc.gov/niosh/ppe/respirators/
Respirator Types and Use
Get information on the use of respirators in the workplace.Personal Protective Equipment
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please boost as it is semi-important
So I want to change my legal name and gender this year; I first want to do the changes in the Netherlands as it's easier for me for various reasons, but that also means carrying over the changes to the Polish side as I am still a citizen of that country.
However moving over the changes also means adjusting my last name to make the ending match my new legal gender (as yes. plenty of last names are gendered. it's stupid.) - and I don't know how the Dutch side will handle that change?
Is there any procedure for such a small change in the BRP? There's little available information for that, and it pisses me off that despite the amount of Polish (and Slavic in general) migrants in this country the civic servants are still ignorant to how our last names work...
our long reservation just got changed and us along with 6 other families are being thrown out
WE NEED DONATIONS. THIS IS AN EMERGENCY
paypal.me/hazelnutflavorcoffee
#mutualaid #begpost #MutualAid #helpfolkslive2025 #transmutualaid #queermutualaid #transcrowdfund #emergencymutualaid #emergencybegpost #emergencycrowdfunding #emergency
@mutualaid@a.gup.pe
https://www.paypal.me/hazelnutflavorcoffee
Transfer money online in seconds with PayPal money transfer. All you need is an email address.www.paypal.me
🔗 Decreases in chimpanzee respiratory disease signs and enteric viral quantity following implementation of anthroponotic disease prevention protocols at a long-term research site sciencedirect.com/science/arti…
Following a fatal outbreak of anthroponotic respiratory disease among chimpanzees at the long-term field site of Ngogo, Kibale National Park, Uganda, research personnel implemented more stringent disease prevention protocols (e.g., use of face masks in the presence of chimpanzees). Furthermore, in response to the COVID-19 pandemic, a 7-day quarantine period prior to any exposure to chimpanzees was implemented for all Ngogo research personnel.Chimpanzees were observed to cough less frequently following the implementation of more stringent disease prevention protocols compared to the period prior. Coughing frequencies were even lower following the implementation of the quarantine period.
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🔗 Measurements of Surrogate Respiratory Sessile Droplet pH and Implications for Exhaled Respiratory Aerosol and Airborne Disease Transmission pubs.acs.org/doi/full/10.1021/…
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Anyone want to hire a full-stack Software Developer with a bachelor's degree and cyber-security experience?
Illinois could become the first state in the country to ban mask bans. Here’s how we created the bill to do it. thesicktimes.org/2025/05/27/il…
Illinois could become the first state in the country to ban mask bans. Here’s how we created the bill to do it. - The Sick Times
Anti-mask laws are discriminatory and dangerous, and so I and other disability advocates across the country are stepping up to counter criminalizing with codifying: our bills would enshrine the right to mask in public spaces in state law.Megan E. Doherty (The Sick Times)
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🔗 Minimal Influenza Virus Transmission From Touching Contaminated Floors and Metal Door Levers: Laboratory Study II onlinelibrary.wiley.com/doi/10…
In our previous paper, we demonstrated through a series of experiments that the probability of influenza virus transmission from touching contaminated surfaces of face masks is minimal (Sci Rep 2024, 14, 20211). In the present study, we expanded upon this study by conducting an experimental evaluation of the likelihood of influenza transmission from dried fomites under three specific scenarios... We found that viable viruses were rarely transmitted to fingertips from the above fomites even when the viral loads in the viral fluid contaminating the fomites far exceeded that seen in real life. Consequently, we conclude that the probability of contact transmission of influenza via dried fomites is negligible or minimal under the scenarios studied here.
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🔗 Here’s an Inconvenient Truth: Disease Is in the Air thetyee.ca/Culture/2025/05/16/…
We ignored the science of airborne transmission for a century. Carl Zimmer tells us why.
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1905 aerosol / droplet experiment U.K. parliament
What were the historical reasons for the resistance to recognizing airborne transmission during the COVID-19 pandemic?
Estimating the population-level effects of nonpharmaceutical interventions when transmission rates of COVID-19 vary by orders of magnitude from one contact to another
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Why are you taking sarscov2/covid seriously when others like you didn't?
(presumably there are a number of discrete subtypes of people like you and for which there may be many distinct 'whys'; feel free to share any/all of them)
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I guess my first reply was flippant. If these conditions hadn't occurred I might be among the majority/nonzeroes:
- in 2020, had immune compromised people in my life
- general attitude of "question everything"
- had the time, energy, desire, capability to spend hours a day reading abstracts and papers
- so I did
- read intelligent analysis and expert notes early on (slatestarcodex.com/ comes to mind from ~January 2020) who correctly laid out possibilities
- read studies and experts early on who presented unequivocal airborne nature (March or April 2020 I think)
- recognized based on the above that Public Health was NOT following the evidence; pushed back without effect, but this made clear that public messaging was not trustworthy (again, in 2020!)
- know people who have been terribly hurt by the pandemic
- kept reading and the evidence has piled up and up and up
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Self-employed with Epstein-Barr floating dormant in my bloodstream. Yeah, no.
That said, I know people with severe asthma who stopped masking b/c peer pressure. "Oh you still mask? I should too."
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Ashe Dryden (@Ashedryden@xoxo.zone)
I’m planning a party in about a month and I’m wondering if anyone has any additional precautions I can take as a Covid cautious person with folks who do not mask.XOXO Zone
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🔗 Indoor Air Pollution: Understanding Harmful Substances in the Indoor Air air-fanta.com/blogs/all/unders…
Understanding Harmful Substances in the Indoor Air
Humans have long recognized the importance of clean drinking water. However, the significance of clean air has not yet been widely acknowledged by the general public.WongAdam (AirFanta)
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🔗 NorthBox 6XL review — the only PC fan air purifier made in Canada
An excellent PC fan-powered air purifier developed by North Box Systems, a father and son company based in Ontario housefresh.com/northbox-6xl-re…
#CovidIsNotOver #CovidIsAirborne
NorthBox 6XL review — a PC fan air purifier made in Canada
The North Box 6XL is an excellent alternative to the CleanAirKits Luggable models for those living in Canada, who are looking for a PC fan air purifier.Danny Ashton (HouseFresh)
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goodmenproject.com/featured-co…
Respirators are so effective that United Kingdom research has indicated their use by the public would have dropped the rate of COVID transmission by an estimated factor of 9, compared with 0.6 for surgical masks. A factor of 9 is enough to put SARS-COV-2 into exponential decay, meaning the virus would have been highly suppressed for as long as respirator use continued. The exponential math of viral spread also means that perfect masking compliance would not have been required to achieve suppression.
#CovidIsAirborne #WearARespirator
How Denial of Airborne COVID Transmission Broke the World - The Good Men Project
As we mark five years since the emergence of SARS-COV-2, the most grievous error of the global pandemic response has become very clear.Healthy Debate (The Good Men Project)
Sigh.
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This might work if we could insert a N95 filter into klan hoods. Otherwise MAGA folks use masks for renditions mainly.
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@violetblue heya! In the recent COVID newsletter, you wrote, “… I don’t see anyone covering the public health developments as a whole picture, rather than fragments.”
There is “Health Security Decoded” by the Johns Hopkins Center for Health Security: centerforhealthsecurity.org/ou…
Apologies if this came from you, and my inbox and I both forgot; felicitations if this is new and useful! You’re the fuckin’ best, keep on keeping on
Health Security Decoded | Johns Hopkins Center for Health Security
Updates on the most important news, events, developments, research, and policy in the areas that comprise health security: biosecurity and biodefense, medicine and public health, science and technology, domestic preparedness and response, government …Johns Hopkins Center for Health Security
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🔗 Why Masks-Required Concerts Still Sell Out in the Bay Area
“I think most non-COVID-cautious musicians think about COVID precautions only being for the sake of disabled and immunocompromised folks, and don’t realize that these are real issues that the musicians themselves can be impacted by and are all at risk for.”
Why Masks-Required Concerts Still Sell Out in the Bay Area
COVID-conscious musicians and fans have created a tight-knit, DIY scene that’s all about accessibility.www.kqed.org
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It's a mystery...
"Why Masks-Required Concerts Still Sell Out in the Bay Area"
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"Respirator" means a facemask that seals around the mouth and nose for the purpose of filtering all the air the wearer inhales.
Respirators can be constructed of either:
a) an elastomeric body designed to be reused many times with replaceable electrostatically-charged, glass fibre, charcoal and/or gas filters, straps, etc
b) an electrostatically-charged fabric designed to be disposed of after one or a small number of uses.
Most reusable elastomeric respirators (N95, FFP2, FFP3, P100) have exhalation valves, but some don't.
Most disposable fabric respirators (KN95, KF94, N95, FFP2, FFP3) don't have exhalation valves, but some do.
🧵
#MaskUp #MaskMeansRespirator #WearARespirator #N95 #P100 #Respie #Elasto #CovidIsAirborne
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🔗 Researchers overlooked airborne diseases for centuries — then COVID-19 changed everything
Researchers overlooked airborne diseases for centuries — then COVID-19 changed everything
A fascinating exploration of microbes that can travel through the air reveals how the pandemic marked a turning point for a crucial research field.Marr, Linsey C.
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Humans are such ridiculous thinkers. I remember learning about Jon Snow near the beginning of the pandemic. He proved cholera was being spread through contaminated water, and he was fighting to convince the "miasma" thinkers.
And I was just like... fellas... has nobody considered that it could be... BOTH? That it might vary by the particular disease? Or even that one disease could have multiple forms of transmission? Why does your pet theory have to be the ONE TRUE theory?
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🔗 Stanford must end its complicity in COVID harms
It’s unconscionable that Stanford School of Medicine and the Freeman Spogli Institute hosted a conference in October led by architects of the disablement of 100 million people and the preventable deaths of tens of millions more. It’s even worse that University President Jonathan Levin lent institutional support by volunteering to make the opening remarks. It’s worse yet that the apparent success of this conference may have influenced President Donald Trump to tap at least two conference participants for top health posts.
From the Community | Stanford must end its complicity in COVID harms
A Stanford conference of COVID contrarians and Long COVID skeptics featuring President Levin is reverberating all the way to the White House.From the Community (The Stanford Daily)
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what an incredible display of maturity and restraint for a college newspaper op-ed discussing a gore-flecked nightmare conference of vultures and hyenas and dung beetles.
It’s a feat to experience disability and still have this article inside you five years on. Elite academia voice is a trip in an internet of polemics.
and furthermore, lmao at the perhaps unintended pun in “being fêted at Stanford.” Blessed is Nurgle’s garden.
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🔗 Developing chlorine-based antiseptic by electrolysis pubmed.ncbi.nlm.nih.gov/319055…
> This paper examined the possibility of using hypochlorite water as a chlorine-based antiseptic for handwashing in public buildings and healthcare facilities. The electrolysis method was used, which produces Hypochlorous acid (HOCl) from mixing drinking water with small amounts of sodium hydroxide. Hypochlorous acid is usually produced by blood cells to surround pathogens when the skin is cut and exposed to pathogens. The methods used were based on hydrolysing drinking water at a different salt concentration (from 0 up to saline water 0.9% NaCl) under the different power supply. The results showed that 0.005-0.01% hydrochloride water can be a perfect antiseptic that can kill most bacteria and pathogenies within 12 s. In one prototype set up one liter of the prepared solution needed the only 2 g of NaCl, 12 V and 3 amps' power. However, the pH value should be maintained to be around 5-6. The results also showed that the most efficient way was to produce the solution on-site. However, if stored properly it can be used for 7-10 days after production.
Developing chlorine-based antiseptic by electrolysis - PubMed
The use of Alcohol-based antiseptics is efficient and approved, however it has some limitations. This paper examined the possibility of using hypochlorite water as a chlorine-based antiseptic for handwashing in public buildings and healthcare facilit…PubMed
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🔗 The Long COVID Game helloworlds.ca/the-long-covid-…
> This short (<5min) instructional game can help illustrate the risks of repeated COVID infections and the chance of acquiring Long COVID. It was designed for large groups, such as a classroom of students. The goal is to communicate the benefits of wearing a respirator, such as an N95, to reduce the number of COVID infections and thus the risk of contracting Long COVID.
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I suspect that maximum power draw is when the device is activating the heating (it needs to heat up to ~60 degrees celsius internally).
After switching it on (while blinking red), it needs to go up from 20 to 60, so there is some continuous heating. After that, I guess it will pulse the heater to stay at 60.
I didn't measure that, just educated guessing.
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Cthulku
in reply to trendless 🇨🇦 • • •The number of people who went from gobsmacked to curious after I told them I always wear a mask while riding my bike is, well, not that high, but still. Most just avoid asking me about masking because reasons.
But yeah, I'd never go back. way more comfortable breathing even in clear air conditions, and orders of magnitude more comfortable in the cold.
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