Så snabbt kan du få covid-19 via luften
“This is how quickly you can get covid-19 through the air”
This is how quickly you can get covid-19 through the air
1/ is one hell of a powerful tool which can sit at the pinnacle of a diverse array of infection control measures, potentially eliminating *all* airborne pathogens from our shared indoor spaces.
“Evidence so far suggests that UVC disinfection technology kills up to 99% of pathogens in the air and on surfaces without harming people and animals present” ‘The mood at the meeting is really upbeat, with everyone looking forward to a new era of clean safe indoor air!’”
As air relative humidity increases, infectivity of SARS-CoV-2 decreases within water droplets | QRB Discovery | Cambridge Core
“we identified a threshold of ≥40% relative humidity as most effective in diminishing SARS-CoV-2 infectivity.”
we identified a threshold of ≥40% relative humidity as most effective in diminishing SARS-CoV-2 infectivity.
“It is literally, actively killing me that people don’t mask. No one cares.”
“‘It is literally, actively killing me that people don’t mask. No one cares.’
Tinu died less than two months later. She spent her final days sounding the alarm, pleading for healthcare staff to take her safety seriously.
I fight for you, Tinu. I miss you.”
Here is the video from today’s hicpac meeting showing that most of them voted against n95 respirators for airborne pathogens.
“Here is the video from today’s @CDCgov hicpac meeting showing that most of them voted against n95 respirators for airborne pathogens.”
Comparing strategies for the mitigation of SARS-CoV-2 airborne infection risk in tiered auditorium venues
study on COVID-19 in auditoriums found displacement ventilation minimized infection risk, while natural ventilation had highest spread.
Masks, shorter events, and lower occupancy helped reduce risks.
And that’s a wrap on my 17-event 2024 wedding season for VCV Entertainment.
“And that’s a wrap on my 17-event 2024 wedding season for VCV Entertainment.
A summary of what my experience has been as a Covid aware wedding and event DJ using #faruvc, air purifiers, and being the only one wearing a mask in every room I perform in. “
Opinion: It's time to clean the germs out of our indoor air
“Over four years later, things are changing. The WHO now finally and fully recognizes COVID-19 is airborne at the institutional level, and has made one of the world’s top aerosol scientists co-chair of their new indoor air advisory group. The WHO also collaborated with particle physicists to develop ARIA, the Airborne Risk Indoor Assessment tool, which models risk of infection for different types of buildings and settings to help us understand how to make indoor air clean.”
Longstanding champion of ventilation, air filtration and improved air quality in schools, Dr Amir Khan, talked to Lorraine 16th October 2024
Dr. Amir Khan on clean air for safer schools
Can the infection risk in elevators be negligible? A comparative study of airborne infection probability in elevators and conference rooms
“this study investigated the airborne transmission of respiratory diseases in the hospital elevator by comparison to the conference room.”
“The results showed that the infection probability in the elevator with 5 min was higher than that in the conference room with 50 min.”
I posted this this morning, then deleted it, then thought about posting it, then thought not... but here it is:
“Just so people reading this know:
When you have covid, you exhale covid particles into the air. Even with just ordinary breathing.
Those particles can then float on the air for hours.”
Pleasure to share a session on Clean Indoor Air at Healthy Work Conference with and and hearing about their work to improve education and inclusiveness in this space.
“Pleasure to share a session on Clean Indoor Air at @unionsaustralia Healthy Work Conference with @plumskyjam and @ColinKinner and hearing about their work to improve education and inclusiveness in this space.”
Opinion: What you should know about COVID this fall
“How is COVID-19 spread? When people cough, sneeze or talk, viral particles can be sent through the air and via droplets. Masking helps to prevent droplet spread, and keeping more than two metres apart and staying in a well-ventilated area can help to limit aerosol spread.
While not a predominant cause of transmission, COVID-19 can also be spread through objects contaminated with secretions from an infected person. The incubation period for COVID-19 — the time from exposure to developing an infection — is about two to four days with the current variant.”
Human behavior-based COVID-19 transmission in two dining spaces
“Airborne routes predominated with a relative contribution of more than 88.0 %. • Wearing mask only for staff can reduce the infection risk by 12.8 %−31.8 %. • A ventilation rate of 30.0 m³ /(h·person) reduced long-range airborne risk by 62.9 %.”
Outbreak investigation of airborne transmission of Omicron (B.1.1.529) - SARS-CoV-2 variant of concern in a restaurant: Implication for enhancement of indoor air dilution
In May of 2021, Hong Kong required air purifers be placed in their restaurants after papers like this showed that you could be infected in just 19 minutes, median exposure time 34 minutes, while eating at a restaurant.
CFD modeling of reactive species air cleaner applications in a classroom
How do we safely turn indoor air itself into a disinfectant?
This study is the first responsible step forward to answering that question:
Airborne transmission: A hidden threat that must be addressed
“Professor Beggs' expert statement made clear what we have known for some time: Covid is an airborne virus, capable of lingering in the air for hours and posing a threat particularly to those who are Clinically Vulnerable.
Yet, the response from the former UK government was, at best, wholly inadequate.”
Mandating Indoor Air Quality for Public Buildings: A Vital Public Health Strategy
Mandating Indoor Air Quality for Public Buildings: A Vital Public Health Strategy
Mandating Indoor Air Quality for Public Buildings: A Vital Public Health Strategy
What would an adequate COVID response look like?
“Refusal to directly communicate 1) how COVID spreads 2) that it can be avoided 3) how it can be avoided while modeling mitigation, makes pandemic communications much more difficult for vulnerable people, activists and marginalized groups attempting to reduce disease burden in their communities. We should not be swimming against the current of public health officials’ poor pandemic hygiene.”
Refusal to directly communicate 1) how COVID spreads 2) that it can be avoided 3) how it can be avoided while modeling mitigation, makes pandemic communications much more difficult for vulnerable people, activists and marginalized groups attempting to reduce disease burden in their communities. We should not be swimming against the current of public health officials’ poor pandemic hygiene.
The 60-Year-Old Scientific Screwup That Helped Covid Kill
Oops! Looks like Covid IS airborne, folks.
“All pandemic long, scientists brawled over how the virus spreads. Droplets! No, aerosols! At the heart of the fight was a teensy error with huge consequences…”
All pandemic long, scientists brawled over how the virus spreads. Droplets! No, aerosols! At the heart of the fight was a teensy error with huge consequences.
UV STUDIES | Modeling methods to address office building clean air targets
“The results of the study illustrate a significant potential energy-efficiency opportunity provided by GUV technology to realize healthier buildings.”
The results of the study illustrate a significant potential energy-efficiency opportunity provided by GUV technology to realize healthier buildings.
COVID patients breathe large amounts of virus early on
COVID patients breathe large amounts of virus early on
COVID patients exhale high numbers of virus during the first eight days after symptoms start, as high as 1,000 copies per minute, reports a new Northwestern Medicine study.
Protecting HCWs and patients: An impossible fix, or an essential one?
“We have dedicated our lives to saving lives. And yet we are trapped in a system where infecting each other and our patients has apparently become acceptable. With no end to COVID waves on the horizon (we’re in a substantial one right now), what is the endgame our health-care leaders are hoping for?”
The Plan to Stop Every Respiratory Virus at Once
“The Plan to Stop Every Respiratory Virus at Once The benefits of ventilation reach far beyond the coronavirus. What if we stop taking colds and flus for granted, too?”
These Are the Drag Artists and Organizers Fighting to Make Queer Spaces More COVID Safe
“Air purifier lending libraries, mask blocs, and mutual aid initiatives are just a few of the ways activists are making spaces where LGBTQ+ people gather more COVID-safe.”
Air purifier lending libraries, mask blocs, and mutual aid initiatives are just a few of the ways activists are making spaces where LGBTQ+ people gather more COVID-safe.
COVID is spreading more now than in any previous back-to-school season. 3 things parents can do
COVID is spreading more now than in any previous back-to-school season. 3 things parents can do
Health and air travel: Why I still wear a mask on planes
“I’m sick of getting sick on planes. I got another case of COVID-19 last month, on a domestic flight, sitting near a woman who was sneezing. I wore an N95 mask, but she was only wearing the loose surgical type. I suspect she knew she was infectious.”
I’m sick of getting sick on planes.
I got another case of COVID-19 last month, on a domestic flight, sitting near a woman who was sneezing. I wore an N95 mask, but she was only wearing the loose surgical type. I suspect she knew she was infectious.
Air Purifiers for Cars: Everything You Need to Know - Kelley Blue Book
“Some automakers are taking steps to improve the air inside their vehicles. Honda Motors Europe introduced a premium air filter to prevent various germs, virus particles, and allergens from entering the cabin.”
Some automakers are taking steps to improve the air inside their vehicles. Honda Motors Europe introduced a premium air filter to prevent various germs, virus particles, and allergens from entering the cabin.
Indoor air quality impact on viral transmission | Chief Scientist
“The impact of Indoor air quality on the transmission of airborne viral diseases in public buildings: a systematic review of evidence was commissioned through the Office of the Chief Scientist and prepared by the University of Wollongong Sustainable Buildings Research” Centre.
Al Haddrell is awesome. ❤️👇
Al Haddrell is awesome. ❤️👇 Watch this brilliant explainer of how higher CO2 levels aren't just an indicator that there is more exhaled air in a room, but a boost to viral airborne longevity.